A coilhaving aresistance of 152 andinductance of 10His connected to a Constant 75 V supply.Find (i) the rate of change of current at the instant of closing the switch (ii)Final steady value (ii) time constant of the circuit (iv) the time taken for the current to reach a value of 4A.

A coilhaving aresistance of 152 andinductance of 10His connected to a Constant 75 V supply.Find (i) the rate of change of current at the instant of closing the switch (ii)Final steady value (ii) time constant of the circuit (iv) the time taken for the current to reach a value of 4A.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 8RQ

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Question

A coilhaving aresistance of 152 andinductance of 10His connected to a
Constant 75 V supply.Find
(i) the rate of change of current at the instant of
closing the switch
(ii)Final steady value
(ii) time constant of the circuit
(iv) the time taken for the current to reach a value of 4A.

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