A transformer with a turns ratio of 20/1 is used to step down the standard 170 V amplitude ac line voltage. What is the peak voltage in the secondary?
A) 6.0 V
B) 7.3 V
C) 170 V
D) 8.5 V

Question

Quizplus · Accepted Answer

The peak voltage in the secondary can be found using the formula:

Vp_secondary = Vp_primary / N

where Vp_primary is the peak voltage of the primary (which is the same as the line voltage) and N is the turns ratio.

Plugging in the values given:

Vp_secondary = 170 V / 20 = 8.5 V

Therefore, the answer is D.

A Transformer with a Turns Ratio of 20/1 Is Used