Laboratory Manual for Introductory Circuit Analysis
13th Edition
ISBN: 9780133923780
Author: Robert L. Boylestad, Gabriel Kousourou
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 54P
Find the steady-state voltage across and the charge on each capacitor for the circuit in Fig.10.122.
Fig.10.122
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Students have asked these similar questions
Show with the aid of a phasor diagram that for both
star- and delta-connected balanced loads, the total active
power is given by √3VI cos φ, where V and I are the
line values of voltage and current respectively and φ is
the angle between phase values of voltage and current.
A balanced three-phase load consists of three
coils, each of resistance 4 Ω and inductance 0.02 H.
Determine the total active power when the coils are (a)
star-connected, (b) delta-connected to a 400 V, three
phase, 50 Hz supply.
ANS:11.56 kW, 34.7 kW
The load connected to a three-phase supply comprises
three similar coils connected in star. The line currents
are 25 A and the apparent and active power inputs are
20 kVA and 11 kW respectively. Find the line and
phase voltages, reactive power input and the resistance
and reactance of each coil. If the coils are now con
nected in delta to the same three-phase supply, calculate
the line currents and the active power taken. ANS :
462 V, 267 V, 16.7 kvar, 5.87 Ω, 8.92 Ω; 75 A, 33 kW
A three-phase delta-connected load, each phase of which
has an inductive reactance of 40 Ω and a resistance
of 25 Ω, is fed from the secondary of a three-phase
star-connected transformer which has a phase voltage
of 230 V. Draw the circuit diagram of the system and
calculate: (a) the current in each phase of the load; (b)
the p.d. across each phase of the load; (c) the current
in the transformer secondary windings; the total
active power taken from the supply and its power factor.
Chapter 10 Solutions
Laboratory Manual for Introductory Circuit Analysis
Ch. 10 - a. Find the electric field strength at a point 1 m...Ch. 10 - The electric field strength is 72 newtons/coulomb...Ch. 10 - Find the capacitance of a parallel plate capacitor...Ch. 10 - How much charge is deposited on the plates of a...Ch. 10 - a. Find the electric field strength between the...Ch. 10 - A 6.8 pF parallel plate capacitor has 160 C of...Ch. 10 - Find the capacitance of a parallel plate capacitor...Ch. 10 - Repeat Problem 7 if the dielectric is...Ch. 10 - Find the distance in mils between the plates of a...Ch. 10 - The capacitance of a capacitor with a dielectric...
Ch. 10 - The plates of a parallel plate capacitor with a...Ch. 10 - A parallel plate air capacitor has a capacitance...Ch. 10 - Find the maximum voltage that can be applied...Ch. 10 - Find the distance in micrometers between the...Ch. 10 - A 22 pF capacitor has -200 ppm/C at room...Ch. 10 - What is the capacitance of a small teardrop...Ch. 10 - A large, flat, mica capacitor is labeled 471F....Ch. 10 - A small, flat, disc ceramic capacitor is labeled...Ch. 10 - For the circuit in Fig. 10.94, composed of...Ch. 10 - Repeat Problem 19 for R=100k, and compare the...Ch. 10 - For the circuit in Fig. 10.95, composed of...Ch. 10 - For the circuit in Fig. 10.96, composed of...Ch. 10 - Prob. 23PCh. 10 - The voltage across a 10 F capacitor in a series...Ch. 10 - For the R-C circuit in Fig. 10.97. composed of...Ch. 10 - For the network in Fig. 10.98. composed of...Ch. 10 - For the network in Fig.10.99.composed of standard...Ch. 10 - The 1000 F capacitor in Fig.10.100 is charged to...Ch. 10 - The capacitor in Fig. 10.101 is initially charged...Ch. 10 - Repeat Problem 29 if the initial charge is -40V.Ch. 10 - Repeat Problem 29 if the initial charge is +40V.Ch. 10 - The capacitor in Fig. 10.102 is initially charged...Ch. 10 - The capacitor in Fig. 10.103 is initially charged...Ch. 10 - The capacitor in Fig. 10.104 is initially charged...Ch. 10 - The capacitors of Fig. 10.105 are initially...Ch. 10 - Repeat Problem 35 if a 10 k resistor is placed in...Ch. 10 - Given the expression vc=140mV(1-e-t/2ms) a....Ch. 10 - For the automobile circuit of Fig. 10.106. VL must...Ch. 10 - Design the network in Fig.10.107 such that the...Ch. 10 - For the circuit in Fig. 10.108: a. Find the time...Ch. 10 - For the system in Fig. 10.109. using a DMM with a...Ch. 10 - For the circuit in Fig. 10.110: a. Find the...Ch. 10 - The capacitor in Fig. 10.111 is initially charged...Ch. 10 - The capacitors in Fig. 10.112 are initially...Ch. 10 - For the circuit in Fig. 10.113: a. Find the...Ch. 10 - The capacitor in Fig. 10.114 is initially charged...Ch. 10 - For the system in Fig. 10.115, using a DMM with a...Ch. 10 - Find the waveform for the average current if the...Ch. 10 - Find the waveform for the average current if the...Ch. 10 - Given the waveform in Fig.10.118 for the current...Ch. 10 - Find the total capacitance CT for the network in...Ch. 10 - Find the total capacitance CT for the network in...Ch. 10 - Find the steady-state voltage across and the...Ch. 10 - Find the steady-state voltage across and the...Ch. 10 - For the configuration in Fig. 10.123, determine...Ch. 10 - For the configuration in Fig.10.124, determine the...Ch. 10 - Find the energy stored by a 120 pF capacitor with...Ch. 10 - If the energy stored by a 6 F capacitor is 1200 J,...Ch. 10 - For the network in Fig. 10.125, determine the...Ch. 10 - An electronic flashgun has a 1000 F capacitor that...Ch. 10 - Using PSpice or Multisim, verify the results in...Ch. 10 - Using the initial condition operator, verify the...Ch. 10 - Using PSpice or Multisim, verify the results for...Ch. 10 - Using PSpice or Multisim, verify the results in...
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