Question:
The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is
10. If the voltage across the primary is 220 V, what is the voltage across the secondary?
The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is
10. If the voltage across the primary is 220 V, what is the voltage across the secondary?
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The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is
10. If the voltage across the primary is 220 V, what is the voltage across the secondary?
Updated On: Apr 15, 2026
- 110 V
- 130 V
- 190 V
- 310 V
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The Correct Option is A
Solution and Explanation
Step 1: Formula
The transformer ratio is $\frac{e_{S}}{e_{P}} = \frac{N_{S}}{N_{P}}$.
Step 2: Values
$N_{P} = 20, N_{S} = 10, e_{P} = 220 \text{ V}$.
Step 3: Calculation
$e_{S} = \frac{10}{20} \times 220 = 110 \text{ V}$.
Final Answer: (a)
The transformer ratio is $\frac{e_{S}}{e_{P}} = \frac{N_{S}}{N_{P}}$.
Step 2: Values
$N_{P} = 20, N_{S} = 10, e_{P} = 220 \text{ V}$.
Step 3: Calculation
$e_{S} = \frac{10}{20} \times 220 = 110 \text{ V}$.
Final Answer: (a)
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