SSC JE Electrical Engineering 24 Jan 2018 Evening Paper

Question : 137 of 200

Marks: +1, -0

Calculate the time (in seconds) taken by a series RL cir cuit having inductance of 0.6 H and resistance of 30 Ohms to reach a steady state value.

Solution:

time taken by

R_L

circuit to reach steady state is 5 times of time constant of

R_L

circuit.
time constant of

R_L

circuit =

L/R

Total time

=5×L/R=5×.6/30= 0.1 sec

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