Electro Magnetic Induction And Alternating Currents Question 265

Question: A transformer has turn ratio 100/1. If secondary coil has 4 amp current then current in primary coil is [RPET 2000]

Options:

A) 4 A

B) 0.04 A

C) 0.4 A

D) 400 A

Show Answer

Answer:

Correct Answer: B

Solution:

$ \frac{i_{p}}{i_{s}}=\frac{N_{s}}{N_{p}}\Rightarrow \frac{i_{p}}{4}=\frac{1}{100}\Rightarrow i_{p}=0.04\ A $



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