If the current changes from 5A to 3A in 2 seconds and the inductance i – McqOptions

MCQOPTIONS

1.	If the current changes from 5A to 3A in 2 seconds and the inductance is 10H, calculate the emf.
A.	5V
B.	10V
C.	15V
D.	20V
Answer» C. 15V

Discussion

No Comment Found

Related MCQs

Calculate the emf induced in an inductor if the inductance is 10H and the current is 2A in 4s.
Find the coupling coefficient if the Mutual inductance is 20H, the inductance of coil 1 is 2H and the inductance of coil 2 is 8H.
In an RL series circuit, when the switch is closed and the circuit is complete, what is the response?
A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the initial value of the voltage across the inductor.
Which, among the following, is the correct formula to find the coupling coefficient?
A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the value of current 1s after the switch is closed.
The charging time constant of a circuit consisting of an inductor is the time taken for the current in the inductor to become __________% of the initial current.
If the flux linkage in coil 1 is 3Wb and it has 500 turns and the current in coil 2 is 2A, calculate the mutual inductance.
Mutual inductance between two coupled coils depend on?
Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.