Critical DampingA motor coil having an inductance of 8 H is in parallel with a 2 µF capacitorand a resistor of unknown value. The response of the parallel combination isdetermined to be critically damped. (a) Determine the value of the resistor.(b) Compute a. (c) Write the equation for the current flowing into the resistor ifthe top node is labeled v, the bottom node is grounded, and v = Rir. (d) Verifythat your equation is a solution to the circuit differential equation,dirdt+ 2adirdt+ a²i, = 0

Answered: Critical Damping A motor coil having an…

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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Similar questions

Capacitance= 9uF Determine the time constant of the circuit for the capacities. For the capacity value, calculate the estimated time to come to the final state. Plot capacitor current and voltage graphs and show if it works in harmony with the time constant you calculated. NOTE: if you want you can use falstad online circuit simulator.
a) The voltage across a 20uF capacitance is v. = 50 sin( at - 80) volts and Frequency equal to 100 Hz. Determine the current through the capacitor i and sketch its waveform. b) Define phasor
. An inductance of 15mH has a current drawing I = 15sin(650t - 300) A. Determine the equation of voltage in the circuit
A 160 microfarad capacitor is connected in series with a 10 ohm resistor. Write equation of the current when the voltage is 220 sin 377t volts. *
C) A 25 A electrodynamic ammeter is controlled by a spring having a constant of 5.7295x 10-6 Nm/rad. The full scale deflection is 110°. Determine the inductance of the instrument while measuring a current of 20 A. The mutual inductance at 0° deflection is 4 u H and the change in mutual inductance is linear with the deflection.
A series circuit connected across a 100-Vac Source consists of a 10-2 resistor, a 5-2 capacitor, and a resistance R that takes 100 W and a reactance X taking 50 inductive VArs. Determine the minimum current required satisfying the above conditions.
A capacitor "C", an inductor "L" and a switch "S" are connected in series. When the switch is open, the plate to the left of the capacitor has charge "Qo". The switch is closed the load and current vary sinusoidally with time. Represent graphically the load "Qo" and the intensity of current "I" as a function of time "t", and explain why the current leads the load by a phase difference of 90°.
2 The figure is a graph of ... 5 (5 Points) Current Voltage the current across a voltage as a function of the potential difference through it the resistance as a function of the current across a component the current through a component as a function of the voltage across it All three of the above (a), (b), and (c) are true None of the above (a), (b), or (c) is true
For the series-parallel inductor circuit shown in figure B19, answer the following questions. 2mH 4mH SmH 3.5mH 8mH 8mH n2mH Figure B19 Determine the inductance, L value. If E is the energy stored in inductor for current, I. Calculate the energy if the current value is increased twice.
a) With switch J2 open, close switch J1. Estimate the time it takes to do it. Obtain the equations for the voltage and current of the capacitor. Determine the energy stored by the capacitor. b) Open switch J1, close switch J2. Estimate the time it takes to do it. Obtain the equations for the voltage and current of the capacitor.
A resistor and a capacitor are connected in series with a variable inductor. When the circuit is connected to a 550V, 40 hz supply, the maximum current given by varying the inductance is 15 A. At this current, the voltage drop across the capacitor is 2800 V. Calculate the power taken and power factor of the circuit when across a 250 V, 60 Hz source.
i. The equivalent inductance between A and B of the circuit shown in figure B2 is 4.67mH. Find the value of unknown inductor, L. L1 L4 2mH 1.5mH L3 7mH L5 14mH A LT -4.67MH B Figure B2 ii. Consider a coil with inductance, L'. Number of turns, 'N' and length of the coil, l". If the length of the coil is halved and number of turns is doubled, what will be the new value of inductance?

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