A step-up transformer has 20 primary turns and 400 secondary turns. If the primary voltage is 120 V, what is the secondary voltage?
A) 48000 V
B) 2400 V
C) 120 V
D) 6.0 V

Question

Quizplus · Accepted Answer

The secondary voltage in a step-up transformer can be calculated using the formula $V_s = V_p \times \frac{N_s}{N_p}$, where $V_s$ is the secondary voltage, $V_p$ is the primary voltage, $N_s$ is the number of secondary turns, and $N_p$ is the number of primary turns. Substituting the given values: $V_s = 120 \times \frac{400}{20} = 2400 V$.

A Step-Up Transformer Has 20 Primary Turns and 400 Secondary