Question

A step-up transformer is used on a 110V line to provide a potential difference of 2200V. If the primary coil has 75 turns in the secondary coil is

• A. 150
• B. 1500
• C. 1200
• D. 1600

Answer 1

The correct option is B 1500

In a step up transformer , the voltage on primary side is $110V$

The voltage on secondary side is $2200V$

The number of turns in primary side is $75$ and let the number of turns in secondary side be $n$

We have $\frac{75}{n}=\frac{110}{2200}$

$\Rightarrow n=1500$

Therefore option $B$ is correct