Question

An inductance coil have the time constant 4 sec,
if it is cut into two equal parts and connected
parallel then new time constant of the circuit :-
(1) 4 sec (2) 2 sec (3) 1 sec (4) 0.5 sec​

Answer 1

Answer:

If an initial current of 2 A in the solenoid is reversed in 0.25 sec, then the .... induced in a coil in which the current changes from 2 ampere to 4 ampere in 0.05 ... question_answer22) Two circuits have coefficient of mutual induction of 0.09 henry. .... In a coil of self inductance 0.5 henry, the current varies at a constant rate from ...

so 2 option is right

Answer 2

Answer:

(1) 4 sec

Explanation:

Combination of inductance is same as resistance.