Magnetic effects of current

Magnetic effects of current

12th Grade

10 Qs

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Magnetic effects of current

Magnetic effects of current

Assessment

Quiz

Physics

12th Grade

Practice Problem

Hard

Created by

K K B RAO

Used 1K+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Who was the first to observe the magnetic effect of electric current?

Faraday

Oersted

Volta

Ampere

2.

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

3.

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

4.

MULTIPLE CHOICE QUESTION

1 min • 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

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

straight

circular

parabolic

elliptical

6.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

If current is passed in a spring with a weight hung on it, then the spring

will be compressed

will expand

compression and expansion both will occur

no change in the state of the spring

7.

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

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