# Magnetic Effects of Current and Magnetism (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 4 of 165

Access detailed explanations (illustrated with images and videos) to 2320 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 600.00 or

How to register?

## Question number: 1

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

Edit
MCQ▾

### Question

In the figure the two parallel wires PQ and ST are at 30 cm apart. The currents flowing in the wires are according to figure. The force acting over a length of 5m of the wires is-

(1) 5 x 10 -4 N (2) attraction

(3) 5 x 10 -8 N (4) repulsion

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4)Response

a.

1 and 2 are correct

b.

1,2 and 3 are correct

c.

1 and 3 are correct

d.

2 and 4 are correct

## Question number: 2

» Magnetic Effects of Current and Magnetism » Ampere's Law

Edit
MCQ▾

### Question

A current is flowing through a conducting hollow pipe whose area of cross-section is shown in the fig. The value of magnetic induction will be zero at-

### Choices

Choice (4)Response

a.

Point Q but not at P and R

b.

Point P but not at Q and R

c.

Point P, Q and R

d.

Point R but not at P and Q

## Question number: 3

» Magnetic Effects of Current and Magnetism » Magnetic Susceptibility and Permeability

Edit
MCQ▾

### Question

For an isotropic medium B, µ 0, H and M are related as (where B, μ 0, H and M have their usual meaning in the context of magnetic material)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 4

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

Edit
MCQ▾

### Question

current carrying loop is free to turn in a uniform magnetic field. The loop will then come into equilibrium when its plane is inclined at

### Choices

Choice (4)Response

a.

135° to the direction of the field

b.

0° to the direction of the field

c.

90° to the direction of the field

d.

45° to the direction of the field

Developed by: