Electro Magnetic Induction And Alternating Currents Question 191

Question: Time constant of L-R circuit will be

Options:

A) LR

B) 2LR

C) L2R

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

  • A circuit equivalent to the given circuit can be drawn as follows:

Where Req=R+2R×2R4R

=R+R Req=2R
Time constant =L2R



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