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SP025 Electromagnetic Induction

Authored by MOHD IZZAT IQBAL MOHD ZAHAR

Physics

12th Grade

Used 88+ times

SP025 Electromagnetic Induction
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Electromagnetic induction is change in ___________________. 

surface area
magnetic poles
magnetic flux

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What would happen if I move a bar magnet in and out of a coil of copper wire?

Electric current would disappear 
The magnet would explode 
Electric current will flow through the wire
It would produce a gravitational field

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A magnet can move in a coil of wire to produce electricity in which system?

Generator
Motor
Magnet
Transformer

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

___ Law says that the Induced current is proportional to the change of magnetic flux 

Lenz'
Faraday's
Ampere's

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which description best applies to Lenz's Law?

An induced current occurs when a magnet passes through a tube.

When a change in magnetic field occurs to a coil the direction of current goes in the in the other direction to this change.

The direction of an induced current is such to align with the change that created it.

A magnet is a tube is always slowed by its magnetic field.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which activity will produce the highest current?

Move the magnet bar into the coil while the coil remains stationery

Move the coil into the magnet bar while the magnet remains stationery

Move the coil and magnet towards each other

Move the coil and magnet away from each other

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which action will increase the deflection of the galvanometer pointer?

The magnetic pole is reversed

The number of turns of coils is increased

The coil is made from insulated wire

The magnet is slowly pushed into the coil

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