An ideal transformer is connected to a 250 V AC mains and its output voltage is 25 V . This transformer is then used to light a bulb with ratings 60 W , 25 V. Calculate the current in the primary coil of the circuit.

Explanation

To solve the problem, we need to calculate the current in the primary coil of an ideal transformer given the input voltage, output voltage, and the power rating of the bulb connected to the transformer. Here are the steps to find the solution:

### Step 1: Identify Given Values
- Input voltage (V1) = 250 V
- Output voltage (V2) = 25 V
- Power of the bulb (P2) = 60 W

### Step 2: Calculate the Current in the Secondary Coil (I2)
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