1.A certain appliance use 350W, if it is allowed to run continous for 24 days , how many kw of energy does it consume (fill in the blank)Ans-201.6 kw

8.the voltage induced across a certain coil is 150 mA. a 100 ?? resistor is connected to the coil terminal calculate induced current in Milli Ampere ??????ans-1.5 Ma

18.What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it?19.If it takes 35 J of energy to move a charge of 6 C from one point to another, what is the voltage between the two points? Your answer should be correct to two decimals.ANS 5.83

3. 2 pole motor running at 4800 rpm, calculate the frequency.Soln: 80Hz

N >120F\P6. Four capacitors in series, 6F, 3F, 8F, 10F. Calculate total capacitance.Soln: 1.38F

7. A certain appliances use 350w. If it is allowed to run continuously for 24 days how many kilowatt of energy does it consume? (Fill in the blank)Soln: 350*24*24/1000= 201.6 kw

9. Alfa particles enter an electromagnetic field where the electric intensity is 600v/m and the magnetic induction is 0.150T what is the velocity of alpha particles?Soln: 4000m/s

e = BLV AND e = NILV = E/LB E/L = 600 V/M B= .150 TV = 600/.15 = 4000 M/S1. *Alfa particles enter an electromagnetic field where the electric intensity is 300v/m and the magnetic induction is 0.200T what is the velocity of Alfa particles?300/.2= 1500

2. *Calculate the frequency of the motor, if the speed if 4800 Rpm and number of Poles is 2. ( up to 0 decimal places)80 Hz

1. *A certain appliance uses 700 W. If it is allowed to run continuously for 36 days, how many kilowatt-hours of energy does it consume(up to 1 deci)700x24x36 / 1000 = 604.83. *Resistances of 20,15,25 ohm are connected in series across a 36 V line. Caluclate voltage drop across 25 ohm resistance?

I = V/R 36/60 X 25 = 15 V

4.. Calculate the frequency of the motor ( up to 0 decimal places),, if the speed if 400 Rps and number of Poles is 2.400 x 60 =24000 x2 /120 = 400

13.inductance or capacitance (dont remember but the unit is same) is 6mh current go from 0.4 to 2.5 amp in 0.6 sec calculate emf (up to 3 decimal places)

15. Calculate the frequency of the motor ( up to 0 decimal places),, if the speed if 4800 Rpm and number of Poles is 2. N=120f/P => 4800*2/120 =. f = 80

16. If the resistance of any coil is 120 Ohm. Calculate the Resistance (up to 0 decimal places), when its Length is increased by 20% and its Diameter is increased by 50%. R= specific resistance * length / Area Answer 96 R1/R2=L1/L2 * A2/A1 = 120/X= 100/120 * 1502/1002 =64

17. What is the power in a Resistor in Milli Watts (up to 0 decimal places), having Resistance of 12 Ohm having a Potential Difference of 3 V. P=V^2 / R multiply to get milli watts value

18. Resistance of a wire is increased if the Length is__Increased__ and Area is __decreased___. refer R= specific resistance * length / Area

1. two inductances are in series( 3 hen and 5 hen)..mutual inductance of 2 hen..total effective inductanceH1+H2+(2M) IF IT SERIESH1+H2-2M IF THEY ARE OPPOSED93.electrons and protons of the same momentum enter normally into a uniform magnetic field of flux density B. mass of the electron is me (m suffix e) and mass of the proton is mp (m suffix p).if re (r suffix e) and rp (r suffix p) represents the radii of the path of the electrons and the protons respectively. calculate the ratio re/rp. your answer should be correct to 2 decimals

94.An insulation resistance reading is taken at 20'C found to be 10 megaohm. What should be the expected reading at 40'C ?ANS 2.5 MEGHAOHMS USCG79.What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it?ANS 300 AT

80.In what range of voltages is the transistor in the linear region of its operation?A.0 < VCE < 0.7 VB.0.7 < VCE < 1.4 VC.0.7 < VCE < VCE(max)D.0 < VCE < VCE(max)

101.Find the amps required by the electrical bulb,if the elecrtonmakes ??10?? moves about 22 elecrtons in one hour.assume a charge at electron be -1.602*10^19.ANS .445110 magnetic field of 0.6.the wire make an angle of 30 degree.cal the magnitude of force on wire (Fill in blank)ANS 2.4 N

A 40 cm wire a current of 20 amps is placed in a uniform magnetic field of 0.6.the wire make an angle of 30 degree.cal the magnitude of force on wire (Fill in blank)ans 2.4 N