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Question: 5 cm long solenoid having 10 ohm resistance and 5 mH inductance is joined to a 10 volt battery. At s...

5 cm long solenoid having 10 ohm resistance and 5 mH inductance is joined to a 10 volt battery. At steady state the current through the solenoid in ampere will be

A

5

B

1

C

2

D

Zero

Answer

1

Explanation

Solution

In steady state current passing through solenoid

i=ER=1010=1 Ai = \frac { E } { R } = \frac { 10 } { 10 } = 1 \mathrm {~A}