Electro Magnetic Induction And Alternating Currents Question 604
Question: A coil of inductance 40 henry is connected in 0series with a resistance of 8 ohm and the combination is joined to the terminals of a 2 volt battery. The time constant of the circuit is [MP PET 2000]
Options:
A) 40 seconds
B) 20 seconds
C) 8 seconds
D) 5 seconds
Show Answer
Answer:
Correct Answer: D
Solution:
Time constant $ =\frac{L}{R}=\frac{40}{8}=5\sec . $
