Electromagnetic Induction & Alternating Currents-Induced EMF and Current (AIIMS (All India Institute of Medical Sciences) Physics): Questions 4 - 8 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.

Question number: 8

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

Appeared in Year: 1995

MCQ▾

Question

Dimension of a rectangular coil is . Number of turns in coil is 60. It is rotating about its one of the diameter in an uniform magnetic field of , with the speed 1800 r. p. m. the maximum induced emf is – [RPMT]

Choices

Choice (4) Response

a.

b.

c.

d.

113 V

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