The primary of a transformer has 200 turns and secondary has 1000 turns. The power output from secondary at 1000 V is 9 kW. Calculate primary voltage and heat loss in primary. Take resistance of primary coil `0.2 Omega` and efficiency of transformer = 90%.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Calculate the output power from the secondary
Given:
- Power output from secondary (P_out) = 9 kW = 9000 W

### Step 2: Calculate the efficiency of the transformer
Given:
...