# Magnetic Effects of Current and Magnetism-Biot - Savart Law (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 1 - 4 of 11

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## Question number: 1

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

MCQ▾

### Question

For the arrangement of two current carrying identical coils shown in the figure, the magnetic field at the center O is (N and a represent number of turns and radius of each coil) -

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 2

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

MCQ▾

### Question

A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field B, such that B is perpendicular to the plane of the loop. The magnetic force acting on the loop is

### Choices

Choice (4) Response

a.

zero

b.

c.

d.

## Question number: 3

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

MCQ▾

### Question

current of 1.0 ampere is flowing in the sides of an equilateral triangle of side 4.5 x 10 -2 m. Find the magnetic field at the centroid of the triangle.

(Permeability constant . )

### Choices

Choice (4) Response

a.

2.0 x 10 -5 eber/m 2

b.

7.0 x 10 -12 weber/m 2

c.

6.0 x 10 -8 weber/m 2

d.

4.0 x 10 -5 weber/m 2

## Passage

A conducting wire is bent into a loop as shown in the figure. The segment AOB is parabolic given by the equation y 2 = 2x while segment BA is a straight line parallel to the y-axis.

The magnetic field in the region is B and the current in the wire is 2A.

## Question number: 4 (1 of 2 Based on Passage) Show Passage

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

MCQ▾

### Question

The field created by the current in the loop at point C will be

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

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