EASY
JEE Advanced
IMPORTANT
Earn 100
The self inductance of a coil is . Keeping the length and area same, the number of turns in the coil is increased to four times. The self inductance of the coil will now be
50% studentsanswered this correctly
Important Questions on Electromagnetic Induction
EASY
JEE Advanced
IMPORTANT
All the three inductors have inductance . The equivalent inductance of the circuit is
EASY
JEE Advanced
IMPORTANT
Two circular coils can be arranged in any of the three situations shown in the figure. Their mutual inductance will be
EASY
JEE Advanced
IMPORTANT
During a current change from to in of is developed in a coil. The coefficient of self induction is
EASY
JEE Advanced
IMPORTANT
Two inductances connected in parallel are equivalent to a single inductance of , and when connected in series are equivalent to a single inductance of . The difference in their inductance is
EASY
JEE Advanced
IMPORTANT
Two coils and are placed in a circuit such that when the current changes by in coil the magnetic flux changes by in . The value of mutual inductance of the coils is
EASY
JEE Advanced
IMPORTANT
The mutual inductance between a primary and secondary circuits is . The resistance of the primary and the secondary circuits are and respectively. To generate a current of in the secondary, current in the primary must be changed at the rate of
EASY
JEE Advanced
IMPORTANT
The coefficient of mutual induction between two circuits is equal to the, produced in one circuit, when the current in the second circuit is
MEDIUM
JEE Advanced
IMPORTANT
An ideal coil of is joined in series with a resistance of and a battery of . after joining, the current flowing in ampere in the circuit will be
