Question

A step-down transformer is to be constructed to obtain an output voltage of 60V by applying an input voltage of 110V. If the primary coil has 6600 turns, then the number of turns of the secondary coil will be 3600 turns.

• A. True
• B. False

Answer 1

The correct option is A

True

Consider the Voltage in Primaty coil be V1 and the Voltage in Secondary coil be V2

Also, Number of turns in Primaty coil be N1 and Number of turns in Secondary coil be N2.

So, the relation between these terms is :-

$\frac{V1}{N1}=\frac{V2}{N2}$

$\Rightarrow \frac{110}{6600}=\frac{60}{N2}$

$\Rightarrow N2=\frac{6600\times 60}{110}=3600$