An electric heater rated 2.2 kW, 220 V" is operated for 2 h. Calculate :
the safe limit of current which can pass through it,

Explanation

To find the safe limit of current that can pass through an electric heater rated at 2.2 kW and 220 V, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Power Rating**:
The power rating of the electric heater is given as 2.2 kW. We can convert this into watts:
\[
P = 2.2 \, \text{kW} = 2.2 \times 10^3 \, \text{W} = 2200 \, \text{W}
...