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Electromagnetic induction

Electromagnetic induction
The polarity of the induced voltage can be determined by using the left-hand generator rule.

Yes
No

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Electromagnetic induction
An average voltage of 10 V is induced in a 250 turns solenoid as a result of a change in flux which occurs in 0.5 second. The total flux change is

2 wb
0.02 wb
20 wb
0.2 wb

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Electromagnetic induction
A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly

120 N
60 N
90 N
30 N

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Electromagnetic induction
As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it

Moves parallel to the direction of the magnetic field
Lies in a magnetic field
Cuts magnetic flux
Lies perpendicular to the magnetic flux

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Electromagnetic induction
Which of the following circuit elements will oppose the change in circuit current?

All of the listed here
Capacitance
Inductance
Resistance

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Electromagnetic induction
Which of the following circuit element stores energy in the electromagnetic field?

Variable resistor
Inductance
Condenser
Resistance

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MORE MCQ ON Electromagnetic induction

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