# Electromagnetic Induction & Alternating Currents-Induced EMF and Current (AIIMS Physics): Questions 4 - 7 of 10

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## Question number: 4

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

### Question

A coil of copper having 1600 turns is placed in a magnetic field perpendicular to its plane. The cross sectional area of the coil is 0.07 m2. If it turns through 180° in 0.04 sec, then the induced emf in the coil is –

### Choices

Choice (4) Response

a.

22.4 V

b.

2.24 V

c.

0.224 V

d.

224 V

## Question number: 5

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

Appeared in Year: 1997

MCQ▾

### Question

A coil of copper having 900 turns is placed in a magnetic field perpendicular to its plane. The cross sectional area of the coil is 0.5 m2. If it turns through 180° in 0.02 sec, then the induced emf in the coil is –

### Choices

Choice (4) Response

a.

135 V

b.

35 V

c.

0.4 V

d.

0.2 V

## Question number: 6

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

### Question

A conducting ring of radius 2 meter is placed in a uniform magnetic field B of 0.04 T, oscillating with frequency 500 Hz with its plane at right angles to magnetic field. What will be the induced electric field?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 7

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

### Question

A conducting ring of radius 1 meter is placed in a uniform magnetic field B of 0.02 T, oscillating with frequency 150 Hz with its plane at right angles to magnetic field. What will be the induced electric field?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page