Electro Magnetic Induction And Alternating Currents Question 268
Question: In a transformer, number of turns in the primary are 140 and that in the secondary are 280. If current in primary is 4A then that in the secondary is [AIEEE 2002]
Options:
A) 4 A
B) 2 A
C) 6 A
D) 10 A
Show Answer
Answer:
Correct Answer: B
Solution:
$ \frac{V_{p}}{V_{s}}=\frac{i_{s}}{i_{p}}\Rightarrow i_{s}=4\times \frac{140}{280}=2A $
