# Magnetic Effects of Current and Magnetism (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 102 - 105 of 155

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## Question number: 102

» Magnetic Effects of Current and Magnetism » Bar Magnet

Assertion-Reason▾

### Assertion (Ꭺ)

Gauss theorem is not applicable in magnetism.

### Reason (Ꭱ)

Mono magnetic pole does not exist.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

## Question number: 103

» Magnetic Effects of Current and Magnetism » Current Loop as Magnetic Dipole

MCQ▾

### Question

A rectangular coil of size 20 cm x 20 cm has 100 turns and carries a current of 1 A. It is placed in a uniform magnetic field B = 0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is

### Choices

Choice (4) Response

a.

200 Nm

b.

10 Nm

c.

Zero

d.

2 Nm

## Question number: 104

» Magnetic Effects of Current and Magnetism » Current Loop as Magnetic Dipole

MCQ▾

### Question

The () graph for a current carrying coil placed in a uniform magnetic field is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 105

» Magnetic Effects of Current and Magnetism » Moving Coil Galvanometer

MCQ▾

### Question

A moving coil galvanometer has N number of turns in a coil of effective area A. It carries a current I. The magnetic field B is radial. The torque acting on the coil is

### Choices

Choice (4) Response

a.

N 2ABi

b.

NABi 2

c.

NA 2B 2i

d.

NABi

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