An electric bulb with rating 200 W, 50V is connected to a source of 120 V.
A resistance R is connected in series to the bulb, so that the bulb delivers 200W . Calculate the value of R.

Explanation

To solve the problem step by step, we will follow these steps:

### Step 1: Calculate the resistance of the bulb
The power rating of the bulb is given as 200 W and its voltage rating is 50 V. We can calculate the resistance of the bulb using the formula:

\[ R_{\text{bulb}} = \frac{V^2}{P} \]
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