Calculate the resistance of an electric heater of 1 kW if it operates on a 220 V power supply.

Explanation

To calculate the resistance of an electric heater with a power rating of 1 kW (1000 W) operating on a 220 V power supply, we can follow these steps:

### Step 1: Use the Power Formula
The power (P) consumed by an electrical device can be expressed as:
\[ P = V \times I \]
where:
- \( P \) is the power in watts (W),
- \( V \) is the voltage in volts (V),
...