A 50 V, 10 W lamp is run on 100 V, 50 Hz a.c. mains Calculate the inductance of the chock coil required.

Explanation

To solve the problem of calculating the inductance of the choke coil required to run a 50 V, 10 W lamp on a 100 V, 50 Hz AC mains, we can follow these steps:

### Step 1: Calculate the Resistance of the Lamp
The resistance \( R \) of the lamp can be calculated using the formula:
\[ R = \frac{V^2}{P} \]
Where:
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