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Currents and Magnetic Fields

Authored by Charles Martinez

Physics

12th Grade

NGSS covered

Currents and Magnetic Fields
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20 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

At the centre of which of the following four circular rings the magnetic field is the strongest for equal magnitude of current?

Loop 1

Loop 2

Loop 3

Loop 4

Tags

NGSS.HS-PS2-5

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

The direction of the force on a current-carrying wire placed in a magnetic field depends on

the direction of the current

the direction of the field

the direction of current as well as field

neither the direction of current nor the direction of field

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Magnetic field inside a long solenoid carrying current is

same at all points (uniform)

different at poles and at the centre

zero

different at all points

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The magnetic field lines due to a straight wire carrying a current are

straight

circular

parabolic

elliptical

Tags

NGSS.HS-PS2-5

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A straight wire of length 0.5m and carrying current 1.2A is placed in uniform magnetic field of induction 2T, applied perpendicular to the length of the wire. The force on the wire is

2.4 N

1.2 N

3.0 N

2.0 N

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What kind of magnet can be turned on and off?

refridgerator magnet
electromagnet
magnetite
iron

Tags

NGSS.HS-PS2-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the shape of a magnetic field around a wire?

Media Image
Media Image
Media Image
Media Image

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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