Question

In a step-up transformer the turns ratio is ______.

Options

• more than 1

• less than 1

• equal to 1

Answer 1

In a step-up transformer the turns ratio is more than 1.

Explanation:

In the step-up transformer, the secondary side voltage and turns are greater than the primary side. In a step-down transformer, the primary side voltage and turns are greater than the secondary side.

Turn ratio (n) of a transformer is given as:

n = `N_1/N_2 = V_1/V_2 = I_2/I_1`