5. Current has been flowing in this circuit for a long time. At time t=0 a wire isconnected between points a and b. (a.) what is the initial current in the wirebetween a and b? (b.) What is the final value of this current? (c.) How manymicroseconds after the wire is attached will the current through the wire be 210A?220 V1Ωa{12 Ω2 mH60 Ω15 mH

The given circuit isThe current has been flowing in this circuit for a long time. At time t=0 a wire…

Answered: 5. Current has been flowing in this…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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If a circuit has a resistance of 3002 and a series inductance of 5002, what is the relationship between the applied circuit voltage and the circuit current? The applied voltage lags the circuit current. The phase shift between the circuit voltage and current changes with time. The applied voltage is in phase with the circuit current. The applied voltage leads the circuit cur Previous Page Next Page Page 2 of 10
There is 50 mA of current through a coil with 250 turns. The flux is 150 µWb. What is the mmf? What is the reluctance of the circuit? A. Fm = 1.25 At - R=4.3x10-3 At/Wb B. Fm = 2.25 At - R=8.3x10-3 At/Wb C. Fm = 1.25 At - R=8.3x10-3 At/Wb D. Fm = 1.25 At - R=8.3x10-2 At/Wb
Given the following Resistances and Inductors in Series and Voltage Source: R1 - 40 ohms R2 = 61 ohms L1 = 1 Henry L2 = 9 Henry Vs = 383 Volts Frequency = 78 Hz What is the Amplitude of the voltage across R1?
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For the series RL circuit shown in the figure below, answer the following questions and justify your answer.If the current is kept constant, does the coil have inductance?If the current is kept constant, does the coil affect the current value?Can the reverse emf ever be greater than the battery emf?
Suppose R2 =100 kΩ. What value of R1 gives a gain of−5?
If an electrical circuit draws 100W + J100VAR from a sinusoidal source, then what would the circuit be? Explain why. a) a pure resistor circuit b) a series or parallel R-L circuit c) a series or parallel R-C circuit d) a series L-C circuit
7. In a pure inductive circuit, the phase angle between the voltage waveform and current waveform will havephase shift * 180 deg O deg 45 deg O 90 deg 8. Why do we say the "voltage across" or "the voltage with respect to?" Why can't we just say voltage? * Voltage is a measure of electric potential difference between two electrical points. O It's an electrical cliche. The other point could be negative or positive. None of the above.
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Electromagnetism 1. A coil has 480 turns and flux in it changes from 0.24 m Wb to 1.2 m Wb in 0.24 second. Calculate the voltage induced in the coil. instructions: Solve in step by step manner as possible for future referencesPlease illustrate properly and draw the solving Make sure to write it in a clean sheet of paper to review
The field winding of a dynamo may be taken to have a constant inductance of 120 H and aneffective resistance of 30 Ω. When it is carrying a current of 5 A, the supply is interrupted and aresistance of 50 Ω is connected across the winding. How long will it take for the current to fall to1-0?
In the phasor space for the circuit in the figure I1 which of the voltages of the current are given correctly?

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