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Electromagnetism
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OMTEX CLASSES SCIENCE AND TECHNOLOGY
ELECTROMAGNETISM FILL IN THE BLANKS
Say true or false. If false, write the correct sentences.
Find the odd one out.
DEFINE THE FOLLOWING
Magnetic field
Solenoid
Electric motor
Fleming’s right hand rule
Fleming’s Left hand rule:
Right hand thumb rule
Electro-magnetic induction.
Electric generator.
DISTINGUISH BETWEEN
ELECTRIC MOTOR V/S ELECTRIC GENERATOR
State the characteristics of magnetic lines of for...
OMTEX CLASSES SCIENCE AND TECHNOLOGY
GIVE SCIENTIFIC REASONS
Wires carrying electricity should not be touched bare footed.
We should not use many electrical appliances simultaneously
Alloys like alnico or nipermag are used in industries.
A magnetic crane is used to load and transport scrap iron. During a short-circuit, the circuit catches fire.
In rainy season, we should not touch the wall of building.
Most of the electrical appliances need earthing.
Magnetic resonance imaging (MRI) is used to study the body ofpatients.
ANSWER IN DETAIL
Electric motor.
Electric generator
Observe the figure. If the current in the coil A is changed, will some current
be induced in the coil B?
What is short circuiting ?
What is a galvanometer ? How does it work ?
State the factors on which magnetic field due to current carrying conductor
depends.
State the applications of electric motor.
State general precautions for safety with respect to electricity.
Force on current carrying conductor is a magnetic field.
Use of magnetism in medical sciences.
Domestic electric circuit.
Earthing.
