Two heaters are marked 200V, 300W and 200 V, 600 W. If the heaters are combined in series and the combination connected to a 200 V dc supply, which heater will produce more heat ?

Explanation

To solve the problem of which heater will produce more heat when connected in series to a 200 V DC supply, we can follow these steps:

### Step 1: Calculate the Resistance of Each Heater
The resistance of a heater can be calculated using the formula:
\[ R = \frac{V^2}{P} \]
where \( V \) is the voltage rating of the heater and \( P \) is the power rating.

**For Heater 1 (200 V, 300 W):**
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