If an emf of 120 volts is suddenly impressed, (a) write the equation of current growth, (b) calculate the time constant t and the current at the instant T, (C) What is the initial rate of current change, (d) calculate the current at 0.00625 sec from the closing of the switch.

If an emf of 120 volts is suddenly impressed, (a) write the equation of current growth, (b) calculate the time constant t and the current at the instant T, (C) What is the initial rate of current change, (d) calculate the current at 0.00625 sec from the closing of the switch.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.7MCQ: Consider Figure 3.5. Match the following, those on the left to those on the right. (i) Im (a)...

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Question

4. An inductive circuit has a resistance of 40 ohms and an inductance of 0.5 henry.
If an emf of 120 volts is suddenly impressed, (a) write the equation of current
growth, (b) calculate the time constant t and the current at the instant t, (c) What
is the initial rate of current change, (d) calculate the current at 0.00625 sec from
the closing of the switch.

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