In the figure, a bar magnet moves away from the solenoid. The induced current through the...

Question

Question

In the figure, a bar magnet moves away from the solenoid. The induced current through the resistor R is

In the figure, a bar magnet moves away from the so

A) from a to b.

B) from b to a.

C) There is no induced current through the resistor.

Answer 1

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Answer #1

Here ,

the magnetic field is to the left at the left end of solenoid ,

as the magnet is moving away from the solenoid , the magnetic flux through solenoid is decreasing ,

according to lenz's law , the induced field will support the applied magnetic field ,

the current will flow from a to b

the A) from a to b

Answer 2

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