In a step-down transformer with 20 turns in the secondary coil and 100 turns in the primary coil, if

Question

In a step-down transformer with 20 turns in the secondary coil and 100 turns in the primary coil, if the voltage applied to the primary coil is 120 V , the voltage output from the secondary coil is

Professor PC Thomas Classes · Answer

$V_s = V_p(\frac{N_s}{N_p}) = 120(\frac{20}{100}) = 24 	ext{ V}$.