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GROUP - A (SHORT ANSWER QUESTIONS)

S. No QUESTION Blooms

Taxonomy

Level

Course

Outcome

UNIT-I

ELECTROSTATICS

1 Define coulombs law? Remember a

2 find the electric field E, if the force on a stationary charge Q is F? Understand e

3 Define unit vector? Remember e

4 Specify the importance of divergence and stokes theorems? Understand e

5 Define gauss law? Remember f

6 Give the expression for the potential difference of two concentric conducting

sphere of radius a and b?

Understand f

7 List the applications of gauss law? Understand g

8 Define electric flux and give the expression? Understand g

9 Give the relation between electric flux and flux density? Understand e

10 State the divergence theorem and give the expression? Understand e

11 State the stokes theorem and give the expression? Understand h

12 Define electric potential? Understand c

13 What e is the first Maxwell’s equation ? Analysis i

14 Give the relation between V and E? Understand k

15 What is the value of curl of E for a static field? Understand m

16 Give the expression for energy due to point Q in electric field ? Understand b

17 What is the condition that the electrostatic field is conservative ? Application g

18 What is mean by dipole moment? Understand f

19 Give the expression for the energy density for electrostatic fields? Understand e

Electromagnetic Theory and Transmission Lines (EMTL)

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20 Find the value of aθ.aφ ? Remember c

21 Define convention current density? Understand a

22 Define conduction current density? Understand e

23 List the names of few conductors along with its conductivity? Understand e

24 Define polarization? Understand e

25 Give the expression continuity equation ? Remember f

26 Give the expression for relaxation time? Remember f

27 Writ e boundary conditions for conducting media? Analysis g

28 Writ e boundary conditions for dielectric media? Understand g

29 Define poission and laplace equations? Remember e

30 Define capacitance between two parallel plates? Analysis e

31 What are the different types capacitors give the C value for all? Understand h

UNIT-II

MAGNETOSTATICS

1 Define Biot severt law and give the expression? Remember a

2 Define amperes circuit law and give the expression? Analysis e

3 List the applications of amperes circuit law? Understand e

4 What is 2nd

Maxwell’s equation ? Remember e

5 What is 3nd

Maxwell’s equation? Understand f

6 Define magnetic flux density? Specify the units? Remember f

7 Define magnetic scalar potential and give the expression? Understand g

8 Define magnetic vector potential and give the expression? Remember g

9 What is the value of permeability for free space and specify the units? Understand e

10 Lis t the types of forces exerted by the magnetic field? Understand e

11 What is lenz law? Understand h

12 What is the Lorentz force equation for a static charge ? Understand c

13 What is the Lorentz force equation for a DC charge? Understand i

14 What is mean by magnetic dipole moment? Understand k

15 List the boundary conditions for Magnetic fields? Understand m

16 Define inductance? Remember b

17 Define mutual inductance? Understand g

18 What Neumann’s formula for mutual inductance? Remember f

19 List any two differences between self and mutual inductance? Understand e

20 Define magnetic energy? Remember a

21 Define magnetic energy due to mutual inductance? Understand e

22 What are the different types of magnetic materials? Understand e

23 List any two differences between magnetic materials? Understand e

24 List any two differences between electrostatic fields and magneto static

fields?

Understand f

25 Define faraday law? Understand f

26 What is mean by transformer emf? Understand g

27 What is mean by generator emf? Understand g

28 Give the reason why amperes law is inconsistent? Remember e

29 Define displacement current density? Understand e

30 Specify the conditions for free space? Remember h

31 Specify the conditions conductor and dielectrics? Understand c

32 What is mean by sinusoidal harmonic variations ? Remember i

UNIT-III

EM WAVE CHARACTERISTICS

1 What is mean by homogeneous medium? Remember a

2 What is mean by isotropic medium? Understand e

3 What is mean by linear medium? Remember e

4 Define uniform plane wave? Understand e

5 Define characteristics impedance? Remember f

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6 Give the expression for attenuation constant? Understand f

7 Give the expression for phase constant? Understand g

8 Define skin depth? Understand g

9 Define Snell’s law? Understand e

10 Define reflection coefficient? Understand e

11 Define transmission coefficient? Understand h

12 Define Brewster angle? Understand c

13 Define critical angle? Remember i

14 What is mean by total internal reflection? Understand k

15 Define surface impedance? Remember m

16 Define poynting theorem? Understand b

17 Give the expression for reflection coefficient for vertical polarization with

oblique incidence?

Remember g

18 Give the expression for transmission coefficient for horizontal polarization

with oblique incidence?

Understand f

19 Give the expression for reflection coefficient for normal incidence ? Understand e

20 Give the expression for transmission coefficient for normal incidence? Understand b

UNIT-IV

TRANSMISSION LINES- I

1 Define transmission line? Remember a

2 What are the types of transmission lines? Understand e

3 What are the primary parameters of transmission lines? Remember e

4 What are the secondary parameters of transmission lines? Understand e

5 What are the generalized equation of transmission lines? Remember f

6 Define characteristic impedance of a transmission lines? Understand f

7 Define group velocity of transmission lines? Understand g

8 Specify the relation between group velocity and phase velocity of

transmission lines?

Understand g

9 Give the condition for lossless transmission in transmission lines? Understand e

10 Give the condition for distortion less transmission in transmission lines? Understand e

11 Give the condition for maximum attenuation in transmission lines? Understand h

12 What is mean by line distortion in transmission lines? Understand c

13 What are various loads in transmission lines? Understand i

14 What is use of generalize transmission line equations? Understand k

15 What is maximum range of frequency transmission lines? Understand m

UNIT-V

TRANSMISSION LINES- II

1 What is mean by standing wave ? Remember a

2 Define reflection in transmission line? Understand e

3 Define refraction in transmission line? Remember e

4 Give the expression for reflection coefficient in transmission line? Understand e

5 What are types of standing wave ratios in transmission line? Remember f

6 Specify the relation between VSWR and reflection coefficient in transmission

line?

Understand f

7 Give the expression for input impedance inters of reflection coefficient ? Understand g

8 What is the use of impedance transformation ? Understand g

9 What is mean by stub matching ? Understand e

10 What are the advantages of stub matching ? Understand e

11 What is the use of smith chart ? Understand h

12 What are the properties of stub matching ? Understand c

13 List the application of smith chart ? Remember i JNTU W

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GROUP - II (LONG ANSWER QUESTIONS)

S. No Question Blooms

Taxonomy

Level

Program

Outcome

UNIT-I

ELETROSTATICS

1 Define divergence and divergence theorem of a vector A and write the

equations?

Remember e

2 Determine the divergence of T =1

r2 cos θ ar + r sin θ cos ∅ aθ + cos θ a∅? Understand e

3 Define dielectric constant, dielectric strength and relaxation time in

electrostatics?

Remember f

4 Derive equation of continuity? Understand f

5 Define curl of a vector and state Stoke’s theorem? Remember g

6 Determine the curl of 𝑄 = 𝜌 sin ∅ 𝑎𝜌 + 𝜌2𝑧𝑎∅ + 𝑧 cos ∅ 𝑎𝑧? Understand g

7 Write a Laplacian equation on Cartesian, cylindrical and spherical coordinates? Understand e

8 Explain conduction current and derive the expression for conduction current

density?

Understand e

9 State coulomb’s law and write the equation for F that exist between two unlike

charges?

Understand h

10 Derive the expression for electric field on point charge Q due to the point

charge Q1?

Understand c

11 Explain convection current density and derive expression for it? Understand e

12 State Gauss’s law and obtain the firstMAXWELL’s equation for electrostatic

fields?

Understand h

13 What is the boundary value problem? Write steps to calculate resistance of a

conductor?

Remember c

14 Obtain the expression for the capacitance of a coaxial capacitor? Understand a

UNIT-II

MAGNETOSATICS

1 State Biot-Savart’s law and obtain the expression for magnetic field intensity at

a point P due to line current element?

Remember e

2 State and explain Faraday’s law for time varying field? Understand h

3 Show that 𝛁 × 𝐄𝐦 = 𝛁 × (𝐮 × 𝐁) for time varying fields? Remember c

4 Define magnetic flux density? Why magnetic flux density is zero in a closed

surface?

Understand f

5 Show that 𝛁 × 𝐇 = 𝐉 +∂𝐃

∂t ? Remember g

6 State and explain ampere’s circuit law? Understand g

7 Obtain the expression for magnetic field intensity due to infinite line current

element?

Understand e

8 What is transformer emf? Show that 𝛁 × 𝐄 =− ∂𝐁

∂tUnderstand e

9 Write integral form of all MAXWELL’S equations? Understand h

10 Obtain Lorentz’s force equation? Remember c

11 Obtain the expression for force F on current element due to the magnetic field

B?

Understand e

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S. No Question Blooms

Taxonomy

Level

Program

Outcome

12 Write MAXWELL’S equations in differential form? Remember e

13 Show that the displacement current density 𝐉d =∂𝐃

∂t ? Understand h

UNIT-III

EM WAVE CHARACTERISTICS

1 Derive Helmholtz equations? Remember e

2 State poynting theorem. What does the poynting vector represent? Understand e

3 Derive the relation between E and H in free space? Remember h

4 What is polarization? What are the different types of polarization? Understand c

5 Define conducting medium and obtain the expression for intrinsic impedance? Remember d

6 What is normal incidence and discuss? Understand i

7 Determine the reflected wave Hr, Er and the transmitted wave Et . Show that the

intrinsic impedance of the lossy medium is 𝜂 = √𝑗𝜔𝜇

𝜎+𝑗𝜔𝜀.

Understand

e

8 Define reflection and transmission coefficient for normal incidence and write the

formulae for E?

Understand e

9 Define Brewster angle? Obtain the expression for it? Understand h

10 Calculate the reflection coefficient for vertical polarization with oblique incident

on perfect dielectric?

Understand c

11 Ensure the transmission for perfect conductor with normal incidence? Understand g

UNIT-IV

TRANSMISSION LINES- I

1 Define a transmission line and explain the primary constants? Understand b

2 What is characteristic impedance? Obtain the relation between characteristic

impedance and the propagation constant?

Remember e

3 Define lossless and distortion less transmission lines and write the conditions

for both?

Understand d

4 Obtain the input impedance of a transmission line of length l characterized by

Z0 and γ.

Remember c

UNIT-V

TRANSMISSION LINES- II

1 Derive the expression 𝑧0 = √𝑍𝑜𝑐𝑍𝑠𝑐 . Understand e

2 Explain how an open circuit line acts as a circuit element? Remember e

3 Explain how a short circuit line acts as a circuit element? Understand h

4 Explain the construction of smith chart? Understand c

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GROUP - III (ANALYTICAL QUESTIONS)

S. No QUESTIONS Blooms

Taxonomy

Level

Program

Outcome

UNIT-I

ELECTROSTATICS

1 If T =1

r3(2 cos θ ar + sin θ aθ) A/m

2, calculate the current passing through a

hemisphere shell of radius 20 cm, 0 < 𝜃 <π

2, 0 < ∅ < 2𝜋

Understand c

2 Given that D = zρ cos ∅2 az C/m2, calculate the charge density at (1,

π

4, 3 ) and

the total charge enclosed by cylinder of radius 1m with −2 ≤ z ≤ 2m

Understand i

UNIT-II

MAGNETOSTATICS

1 A circular loop located on x2 + y2 = 9, z = 0 carries a direct current of 10A

along 𝒂∅. Determine H at (0, 0, 4) and (0, 0, -4)?

Understand c

2 Given the magnetic field vector potential 𝐀 =−ρ2

4𝐚𝐳 Wb/m, calculate the total

magnetic flux crossing the surface ∅ =π

2, 1 ≤ ρ ≤ 2m, 0 ≤ z ≤ 5m?

Understand f

3 A parallel plate capacitor with a plate area of 5cm2and plate separation of

3mm has a voltage 50 sin 103𝑡 V applied to its plates. Calculate displacement

current assuming ∈= 2 ∈0 ?

Understand k

UNIT-III

EM WAVE CHARACTERISTICS

1 In a lossless dielectric for which η= 60π, 𝜇𝑟 = 1 and 𝐇 = −0.1 cos(ωt −z)𝐚𝐱 + 0.5 sin(ωt − z)𝐚𝐲 A/m. Calculate 𝜀𝑟 , 𝜔 and E.

Understand b

2 In a non magnetic medium 𝐄 = 4 sin(2π × 107t − 0.8x)𝐚𝐳 V/m. Find𝜀𝑟, η and

time average power carried by the wave?

Understand e

3 A plane wave propagating through a medium with 𝜀𝑟 = 8, 𝜇𝑟 = 2 has𝐄 =

0.5ez

3⁄ sin(108t − βz)𝐚𝐱. Determine the loss tangent, H field and intrinsic

impedance.

Understand h

4 In free space, 𝐇 = 0.2 cos(ωt − βx)𝐚𝐳 A/m. Find the total power passing

through a square plate of side 10cm on plane 𝑥 + 𝑦 = 1 and a circular disk of

radius 5cm on plane𝑥 = 1.

Understand c

5 A plane wave propagating through in a non magnetic medium has 𝐄 =50 sin(108t + 2z)𝐚𝐲 V/m. Find λ, 𝜀𝑟 and H?

Understand g

6 In a free space(𝑧 ≤ 0), a plane wave with 𝐇 = 10 cos(108t − βz)𝐚𝐱 A/m is

incident normally on a lossless medium (𝜀 = 2𝜀0, 𝜇 = 8𝜇0) in region𝑧 ≥ 0.

Understand b

7 For a copper coaxial cable shown below, let a= 2mm, b= 6mm and t=1mm.

Calculate the resistance of a 2m length of the cable at dc and at 100 MHz?

Understand a

8 Given a uniform plane wave in air as 𝐄 = 40 cos(ωt − βz)𝐚𝐱 + 30 sin(ωt −βz)𝐚𝐲V/m. Find Hi, and if the wave encounters a perfectly conducting plate

normal to the z- axis at z=0, find the reflected wave Er and Hr.

Understand l

UNIT-IV

TRANSMISSION LINES - I

1 An air line has a characteristic impedance of 70Ω and phase constant of 3rad/m

at 100 Mhz. Calculate R, C and L.

Understand e

2 A transmission line operating at 500 MHz has Z0=80Ω, α=0.04 Np/m, β=1.5

rad/m. Find line parameters R, L, G and C?

Understand m

3 A distortion less line has Z0=60Ω, α=0.04 Np/m, u=0.6c, where c is the speed

of the light in a vacuum. Find R, L and G?

Understand h

4 A telephone line has R= 30Ω/km, L= 100mH/km, G= 0 and C=20μF/km. at

f=1 KHz obtain Z0, γ and phase velocity (u).

Understand c

UNIT-V

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S. No QUESTIONS Blooms

Taxonomy

Level

Program

Outcome

TRANSMISSION LINES - II

1 A certain transmission line 2m long operating at ω=106 rad/s has α=dB/m,

β=1rad/m and Z0=60+j40Ω. If the line is connected to a source of 10∟00 V,

Zg= 40Ω and terminated by a load of 20+j50Ω. Determine the input Impedance

and the sending end current

Understand e

2 A lossless transmission line with Z0=50Ω is 30m long and operates at 2MHz.

the line is terminated with a load ZL= 60+j40Ω, if u=0.6c on the line. Find the

reflection coefficient Γ, standing wave ratio S and the input impedance Zin

Understand f

3 A load of 100+j150Ω is connected to a 75Ω lossless line. Find Γ, S and load

admittance YL

Understand h

1 A certain transmission line 2m long operating at ω=106 rad/s has α=dB/m,

β=1rad/m and Z0=60+j40Ω. If the line is connected to a source of 10∟00 V,

Zg= 40Ω and terminated by a load of 20+j50Ω. Determine the input Impedance

and the sending end current

Understand e

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