7. A círcuit whose resistance is 20 ohms inductance of 10 H has a steady state voltage of 100 volts suddenly applied to it. For the instant of 0.50 second after the voltage is applied, determine the total power input to the circuit. a. 200 watts b. 316 watts c. 116 watts d. 500 watts 8. A coil has 2500 turns, and a current of 1O A flowing in it produces an effective flux of 0.06 Weber. If the resistance is 50 ohms, what is the time constant of the coil. a. 1.0 sec b. 1.25 sec c. 0.3 sec d. 2.25 sec

7. A círcuit whose resistance is 20 ohms inductance of 10 H has a steady state voltage of 100 volts suddenly applied to it. For the instant of 0.50 second after the voltage is applied, determine the total power input to the circuit. a. 200 watts b. 316 watts c. 116 watts d. 500 watts 8. A coil has 2500 turns, and a current of 1O A flowing in it produces an effective flux of 0.06 Weber. If the resistance is 50 ohms, what is the time constant of the coil. a. 1.0 sec b. 1.25 sec c. 0.3 sec d. 2.25 sec

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

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