Question
Medium
Solving time: 3 mins
An inductor and a resistor are connected in series to a battery of 15V EMF in a circuit shown below. The key has been kept closed for a long time. Then at is opened and key is closed simultaneously. At , the current in the circuit will be
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Text solutionVerified
O. After long time inductor behaves as short-circuit.
At , the inductor behaves as short-circuited.
The current
As is closed, current through the inductor starts decay, which is given at any time as
At
or
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Question Text | An inductor and a resistor are connected in series to a battery of 15V EMF in a circuit shown below. The key has been kept closed for a long time. Then at is opened and key is closed simultaneously. At , the current in the circuit will be |
Updated On | Jan 2, 2023 |
Topic | Alternating Current |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 1 |
Upvotes | 148 |
Avg. Video Duration | 8 min |