Question Detail

PHY 102 Test Compilation PHY 102 23 Objective Question

Question

An ideal transformer has 550 turns on the primary and 30 on the secondary. What is the maximum output p.d. if the maximum input voltage is 3300 V? And what maximum primary current is required if 11 A is drawn from the secondary (100% efficient)?
Options
A V2 = 180 V and I = 0.6 A
Correct Answer
B V2 = 108 V and I = 0.06 A
C V2 = 180 V and I = 1.20 A
D V2 = 180 V and I = 0.06 A
Correct Answer

Option A is the correct answer.

Detailed Explanation

Vs = Vp x (Ns/Np) = 3300 x (30/550) = 180 V. Ip = (Vs Is)/Vp = (180x11)/3300 = 0.6 A.

Hint

Vs = Vp x (Ns/Np) = 3300 x (30/550) = 180 V.

Question Info