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A coil when connected across a 10 V d.c....

A coil when connected across a 10 V d.c. supply draws a current of 2 A. When it is connected across 10 V - 50 hz a.c. supply the same coil draws a current of 1 A. Explain why? Hence determine self inductance of the coil.

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To solve the problem, we will analyze the behavior of the coil when connected to both DC and AC supplies, and then we will calculate the self-inductance of the coil. ### Step 1: Analyze the DC Circuit When the coil is connected to a 10 V DC supply, it draws a current of 2 A. We can use Ohm's law to find the resistance of the coil. **Formula:** \[ R = \frac{V}{I} \] ...
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