Primary winding and secondary winding of a transformer has 100 and 300 turns respectively . If its input power is 60 W then outut power of the transformer will be :

Options

A. 240 W
B. 180 W
C. 60 W
D. 20 W

Answer

To solve the problem, we need to understand the basic principle of a transformer. In an ideal transformer, the input power is equal to the output power, assuming no losses.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Number of turns in the primary winding (Np) = 100 turns
- Number of turns in the secondary winding (Ns) = 300 turns
- Input power (P_in) = 60 W

2. **Understand the Concept of an Ideal Transformer:**
- In an ideal transformer, the input power is equal to the output power. This means:
\[ P_{in} = P_{out} \]

3. **Apply the Concept:**
- Since the transformer is assumed to be ideal (no losses), we can directly equate the input power to the output power:
\[ P_{out} = P_{in} = 60 \text{ W} \]

4. **Conclusion:**
- Therefore, the output power of the transformer is:
\[ P_{out} = 60 \text{ W} \]

### Final Answer:
The output power of the transformer will be **60 W**.

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