To induce an e.m.f. in a coil, the linki...

To induce an e.m.f. in a coil, the linking magnetic flux

Must decrease

Must increase

Must remain constant

Can either increase of decrease

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MOTION-ELECTRO MAGNETIC INDUCTION-EXERCISE-2 (Objective problems (Analytical questions))

The current flows in a circuit as shown below . If a second circuit is...
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Two identical circuit coils A and B are placed parallel to each other ...
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To induce an e.m.f. in a coil, the linking magnetic flux
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A coil of resistance 10 Omega and 1000 turns have the magnetic flux li...
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One coil of resistance 40 Omega is connected to a galvanometer of 16 O...
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A flexible wire bent in the form of a circle is placed in a uniform ma...
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A short bar magnet passes at a steady speed right through a long solen...
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A square loop of side 22 cm is changed to a circle in time 0.4 sec wit...
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The magnetic flux in a coil of 100 turns increase by 12 xx10^(3) Maxw...
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Which of the following can produce maximum induced emf?
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A solenoid has an inductance of 10 henty and a resistance of 2 ohm. It...
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An inductance coil have the time constant 4 sec, if it is cut into two...
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Which statement is correct from following (a) Inductor store ener...
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Two coils are made of copper wires of same length in the first coil t...
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If a current of 2A give rise a magnetic flux of 5xx10^(-5) weber/turn ...
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For a solenoid keeping the turn density constant its length makes halv...
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In the circuit shown in figure bulb will become suddenly bright if :-
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Two bulb of same rating B(1) and B(2) are connected in series with the...
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A constant current I is maintained in a solenoid. Which of lthe follo...
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A coil of copper wire is connected in series with a bulb, a battery an...
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