EASY
12th West Bengal Board
IMPORTANT
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What do you mean by non-inductive coil?

Important Questions on Electromagnetic Induction

EASY
12th West Bengal Board
IMPORTANT
Show that the units RC and L/R are of time, RL and C having their usual significance. 
EASY
12th West Bengal Board
IMPORTANT
A solenoid carrying a current supplied by a DC source with constant emf contains an iron core inside it. How will the current change during the removal of the core from the solenoid? Explain.
EASY
12th West Bengal Board
IMPORTANT
A copper ring is held horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring. Will the acceleration of the falling magnet be equal to, greater than or less than that due to gravity? 
EASY
12th West Bengal Board
IMPORTANT
Two identical circular coils A and B are placed parallel to each other with their centres on the same axis. The coil B carries a current I in the clockwise direction as seen from A. What would be the direction of induced current in A as seen from B when the current in B is increased?
EASY
12th West Bengal Board
IMPORTANT

Two identical circular coils A and B are placed parallel to each other with their centres on the same axis. The coil B carries a current I in the clockwise direction as seen from A. What would be the direction of induced current in A as seen from B when the coil B is moved towards A, keeping the current in B constant?

EASY
12th West Bengal Board
IMPORTANT
A bar magnet is pulled rapidly through a conducting loop along its axis with a uniform velocity with its south pole entering the loop first. Sketch qualitatively the induced current.
EASY
12th West Bengal Board
IMPORTANT

A bar magnet is pulled rapidly through a conducting loop along its axis with a uniform velocity with its south pole entering the loop first. Sketch qualitatively the joule heating as a function of time (Take the induced current positive if it is clockwise when viewed along the path of the magnet).

MEDIUM
12th West Bengal Board
IMPORTANT

The figure given below shows two identical rectangular loops (1) and (2) placed on a table along with a straight long current carrying conductor between them. What will be the directions of the induced currents in the loops when they are pulled away from the conductor, with some velocity v?

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