A 60 W load is connected to the secondary of a transformer whose primary draws line voltage. If a current of 0.54 A flows in the load, what is the current in the primary coil? Comment on the types of transformer being used.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Calculate the voltage across the secondary coil (Vs)
We know that the power (P) in the secondary coil is given by the formula:
\[ P = V_s \times I_s \]
Where:
- \( P = 60 \, \text{W} \) (power in the secondary)
- \( I_s = 0.54 \, \text{A} \) (current in the secondary)
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