Question

The turn ratio of transformers is given as 2:3. If the current through the primary coil is 3A, thus calculate the current through load resistance.

• A. 1A
• B. 4.5A
• C. 2A
• D. 1.5A

Hint:

In transformers, the current ratio is inversely proportional to the turn ratio.

Answer 1

The Correct Option is C

In a transformer, the current is related by the ratio \( \frac{I_1}{I_2} = \frac{N_2}{N_1} \), where \( N_1 \) and \( N_2 \) are the number of turns in the primary and secondary coils, respectively. Using this relation, we find the current through the load resistance.

Step 2: Conclusion.
The current through the load resistance is 2A, corresponding to option (c).