Electro Magnetic Induction And Alternating Currents Question 279
Question: A transformer with efficiency 80% works at 4 kW and 100 V. If the secondary voltage is 200 V, then the primary and secondary currents are respectively [Kerala PMT 2005]
Options:
A) 40 A, 16 A
B) 16 A, 40 A
C) 20 A, 40 A
D) 40 A, 20 A
Show Answer
Answer:
Correct Answer: A
Solution:
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