The voltage across the input terminals of a transformer is 110 V.The primary coil has 50 loops and the secondary coil has 100 loops.The output is

Question

Quizplus · Accepted Answer

We know that the ratio of voltages is equal to the ratio of number of turns in a transformer. 
Given that primary coil has 50 loops and secondary coil has 100 loops. Therefore, 
Voltage ratio= (Number of turns in secondary coil)/(Number of turns in primary coil)=100/50=2
Output voltage= Voltage ratio x Input voltage
=2x110=220 V
Hence, the correct option is (D) 220 V.

The Voltage Across the Input Terminals of a Transformer Is