An electric heater draws a current of 10A from a 220V supply. What is the cost of using the heater for 5 hours everyday for 30 days if the cost of 1 unit (1 kWh) is Rs 5.20?

Explanation

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

### Step 1: Calculate the Power of the Heater
The power (P) consumed by the electric heater can be calculated using the formula:
\[ P = V \times I \]
Where:
- \( V = 220 \, \text{V} \) (voltage)
- \( I = 10 \, \text{A} \) (current)
...