Electromagnetic Theory-Electromagnetic Induction (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 4 - 4 of 4

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Question number: 4

» Electromagnetic Theory » Electromagnetic Induction

Appeared in Year: 2016

MCQ▾

Question

A conducting circular disc of radius and resistivity rotates with an angular velocity in a magnetic field perpendicular to it. voltmeter is connected as shown in the figure below.

A disc of radius r

A Disc of Radius R

In figure a disc of radius r connected with voltmeter is shown

Assume its internal resistance to be infinite, the reading on the voltmeter: (December)

Choices

Choice (4) Response

a.

is zero because a current flows in the direction of

b.

depends on and , but not on

c.

is zero because the flux through the loop is not changing

d.

depends on and

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