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3.2 Force on Current Carrying Conductor Cikgu Sakinah

Total questions: 11

Worksheet time: 8mins

Name
Class
Date
1.

Magnetic field produced around a straight conductor due to current in it is given by

a)

Fleming's right hand rule

b)

Right hand grip rule

c)

Clock rule

d)

Fleming's left hand rule

2.

What does the thumb indicate in flemings left hand rule?

a)

Force

b)

Motion

c)

Current

d)

Magnetic field direction

3.

Name one factor that does not affect the size of a force in on a current-carrying conductor placed in a magnetic field?

a)

Gravity

b)

Magnetic flux density/size of magnetic field

c)

Size of the current

d)

Length of the conductor

4.

Why might a current-carrying wire be placed between a magnetic field?

a)

To increase the current from the interaction of magnetic fields

b)

To increase the voltage from the interaction of magnetic fields

c)

To produce a force from the interaction of magnetic fields

5.

c represented by

a)

direction of magnetic field

b)

direction of rotation

c)

direction of force

d)

direction of magnitude current

6.

Diagram shows a coil placed between the poles of a permanent magnet and is connected to the external circuit.Determine the direction of rotation of the coil when the switch is closed.

a)

Clock wise

b)

Anti Clock wise

c)

Alternately, anticlockwise then clockwise

d)

Alternately, clockwise then anticlockwise

7.

Diagram shows a coil placed between two opposite magnetic poles. An electric current flows through the coil producing a pair of turning force, F.Which diagram shows the correct catapult field ?

a)
b)
c)
d)
8.

Diagram shows a current–carrying conductor placed between the poles of two magnet bars. Which diagram shows the resulting magnetic field ?

a)
b)
c)
d)
9.

What does the following represent?

⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

a)

Multiplied by a billion

b)

A piece of modern art

c)

Uniform magnetic field directed into the screen away from you

d)

Uniform magnetic field directed out of your screen at you

10.

The strongest part of a magnet is...

a)

the bars .

b)

the force field.

c)

the poles.

d)

the middle.

11.

A current carrying wire lies between the poles of

two magnets, as shown. What is the direction of the force on the wire?

a)

Into the plane of the paper

b)

Out of the plane of the paper

c)

Towards the N-pole

d)

To the right