Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Textbook Question
Chapter 5, Problem 10TFQ
The total power dissipated by parallel resistors can be larger than the power supplied by the source.
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Find the power delivered across the 10 ohm resistor
For the Circuit Below Find:
A) io in terms of Rb and the numerical resistor values provided in the schematic. Reduce your
solution to a minimal Equations
B)the power delivered across Rb in terms of Rb and the numerical resistor values provided in the
schematic. Reduce your solution to a minimal equation.
C) the power delivered across Rc if Rb is 5 Q
Ra $50
15Ω
M
120
90V
+1
Rb
150 150
m
Rc
Problems
A.1 The square-law modulator is a device for the generation of DSB-PC-AM signals. In the square-law modulator, the sum of the modulating signal and the carrier wave
forms the input signal to a nonlinear device. The output signal of the nonlinear device is a linear combination of the input signal and the square of the input signal. The
output signal of the nonlinear device is then band-pass filtered. The BPF has a center frequency that is the same as the carrier frequency and a bandwidth that is twice
the message bandwidth. Show the output of the BPF is a DSB-PC-AM signal, and determine a requirement between the carrier frequency and the message bandwidth
that must be satisfied.
Chapter 5 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 5 - Prob. 1TFQCh. 5 - The total resistance of parallel resistors is...Ch. 5 - The product-over-sum rule works for any number of...Ch. 5 - In a parallel circuit, the voltage is larger on a...Ch. 5 - Prob. 5TFQCh. 5 - Prob. 6TFQCh. 5 - Prob. 7TFQCh. 5 - In the current-divider formula, Ix=(RT/Rx)lT, the...Ch. 5 - Prob. 9TFQCh. 5 - The total power dissipated by parallel resistors...
Ch. 5 - In a parallel circuit, each resistor has the same...Ch. 5 - When a 1.2k resistor and a 100 resistor are...Ch. 5 - Prob. 3STCh. 5 - Eight resistors are in parallel. The two...Ch. 5 - When an additional resistor is connected across an...Ch. 5 - If one of the resistors in a parallel circuit is...Ch. 5 - The currents into a node are along two paths. One...Ch. 5 - Prob. 8STCh. 5 - Prob. 9STCh. 5 - Prob. 10STCh. 5 - In a certain three-branch parallel circuit,...Ch. 5 - Prob. 12STCh. 5 - Prob. 13STCh. 5 - Prob. 14STCh. 5 - Determine the cause for each set of symptoms....Ch. 5 - Prob. 2TSCCh. 5 - Prob. 3TSCCh. 5 - Prob. 4TSCCh. 5 - Determine the cause for each set of symptoms....Ch. 5 - Connect the resistors in Figure 5-57 in parallel...Ch. 5 - Determine whether or not all the resistors in...Ch. 5 - Determine the total resistance between pins 1 and...Ch. 5 - The following resistors are connected in parallel:...Ch. 5 - Find the total resistance between nodes A and B...Ch. 5 - Calculate RT for each circuit in Figure 5-60.Ch. 5 - What is the total resistance of eleven 22k...Ch. 5 - Five 15, ten 100, and two 10 resistors are all...Ch. 5 - Determine the voltage across and the current...Ch. 5 - The source voltage in Figure 5-61 is 100 V. How...Ch. 5 - Prob. 11PCh. 5 - The resistance of a 60 W bulb is approximatey 240....Ch. 5 - What is the current in each resistor for the...Ch. 5 - Four equal-value resistors are connected in...Ch. 5 - The following currents are measured in the same...Ch. 5 - There is a total of 500mA of current into five...Ch. 5 - How much current is through R2 and R3 in Figure...Ch. 5 - A trailer has four running lights that draw 0.5A...Ch. 5 - Assume the trailer in Problem 18 has two brake...Ch. 5 - A 10k resistor and a 15k resistor are in parallel...Ch. 5 - How much branch current should each meter in...Ch. 5 - Prob. 22PCh. 5 - Five parallel resistors each handle 40mW. What is...Ch. 5 - Prob. 24PCh. 5 - Six light bulbs are connected in parallel across...Ch. 5 - If one of the bulbs burns out in Problem 25, how...Ch. 5 - In Figure 5-67, the current and voltage...Ch. 5 - Prob. 28PCh. 5 - Find the open resistor in Figure 5-69.Ch. 5 - From the ohmmeter reading in Figure 5-70, can you...Ch. 5 - In the circuit of Figure 5-71, determine...Ch. 5 - The total resistance of a parallel circuit is 25....Ch. 5 - What is the current through each resistor in...Ch. 5 - A certain parallel circuit consists of only 12W...Ch. 5 - Find the values of the unspecified quantities...Ch. 5 - What is the total resistance between terminal A...Ch. 5 - What value of R2 in Figure 5-75 will cause...Ch. 5 - Determine the total current from the source and...Ch. 5 - The electrical circuit in a room is protected with...Ch. 5 - The total resistance of a parallel circuit is 25....Ch. 5 - Prob. 41PCh. 5 - If the total resistance in Figure 5-78 is 200,...Ch. 5 - Determine the unknown resistances in Figure 5-79.Ch. 5 - There is a total of 250 mA into a parallel circuit...Ch. 5 - Prob. 45PCh. 5 - Develop a test procedure to check the circuit in...Ch. 5 - A certain parallel circuit consists of five 12W...Ch. 5 - For the circuit board shown in Figure 5-82,...Ch. 5 - For the circuit board shown in Figure 5-82,...Ch. 5 - Open file P05-50; files are found at...Ch. 5 - Open file P05-51. Using current measurements,...Ch. 5 - Open file P05-52. Using current measurements,...
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