Transformer Design | MCQs

Explanation

The output voltage of transformer is greater than input voltage.

then it is known as step up transformer.

Explanation

In a step-up transformer, the quantity that remains constant is power. 

Power conservation:

In an ideal transformer, the power input to the primary coil is equal to the power output from the secondary coil, meaning power is conserved. 

Voltage and current change:

While power stays constant, the voltage increases in a step-up transformer, which results in a corresponding decrease in current to maintain the same power output. 

Explanation

In an ideal transformer, power input is equal to power output.

This is based on the principle of conservation of energy.

It means that the transformer is assumed to have no losses; therefore, the input power (from the primary coil) equals the output power (to the secondary coil).