Electro Magnetic Induction And Alternating Currents Question 40
Question: When 100 volt dc is applied across a coil, a current of 1 amp flows through it. When 100 volt ac at 50 cycle is applied to the same coil, only 0.5 ampere current flows. The impedance of the coil is [Bihar MEE 1995]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
When dc is supplied