
Principles Of Electric Circuits
10th Edition
ISBN: 9780134879482
Author: Floyd, Thomas L.
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 6ST
A 9 V battery is connected across a series combination of 68 Ω, 33 Ω, 100 Ω. and 47 Ω resistors. The amount of current is
- a. 36.3 mA
- b. 27.6 A
- c. 22.3 mA
- d. 363 mA
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
4. A battery operated sensor transmits to a receiver that is plugged in to a power outlet. The device is
continuously operated. The battery is a 3.6 V coin-cell battery with a 245mAHr capacity.
The application requires a bit rate of 36 Mbps and an error rate of less than 10^-3. The channel has a
center frequency of 2.4 GHz, a bandwidth of 10 MHz and a noise power spectral density of 10^-14
W/Hz. The maximum distance is 36 meters and the losses in the channel attenuates the signal by 0.25
dB/meter.
Your company has two families of chips that you can use. An M-ary ASK and an M-ary QAM chip. The
have very different power requirements as shown in the table below.
The total current for the system is the current required to achieve the desired Eb/No PLUS the current
identified below:
Hokies PSK Chip Set Operating Current NOT Including
the required Eb/No for the application
Hokies QAM Chip Set Operating Current NOT Including
the required Eb/No for the application
Chip ID
M-ary
Voltage (volts)…
Using the 802.11a specifications given below, in Matlab (or similar tool) create the time domain signal
for one OFDM symbol using QPSK modulation. See attached plot for the QPSK constellation.
Your results should include the power measure in the time and frequency domain and comment on
those results.
BW
802.11a OFDM PHY Parameters
20 MHZ
OBW
Subcarrer Spacing
Information Rate
Modulation
Coding Rate
Total Subcarriers
Data Subcarriers
Pilot Subcarriers
DC Subcarrier
16.6 MHZ
312.5 Khz (20MHz/64 Pt FFT)
6/9/12/18/24/36/48/54 Mbits/s
BPSK, QPSK, 16QAM, 64QAM
1/2, 2/3, 3/4
52 (Freq Index -26 to +26)
48
4 (-21, -7, +7, +21)
*Always BPSK
Null (0 subcarrier)
52 subarriers
-7
(48 Data, 4 Pilot (BPSK), 1 Null)
-26 -21
0
7
21 +26
14
One Subcarrier
1 OFDM symbol
1 OFDM Burst
-OBW 16.6 MHz
BW 20 MHZ
1 constellation point
= 52 subcarriers
= one or more OFDM symbols
802.11a OFDM Physical Parameters
Show signal at this point
x bits
do
Serial
Data
d₁
S₁
Serial-to-
Input
Signal
Parallel
Converter
IFFT…
Find Vb and Va using Mesh analysis
Chapter 5 Solutions
Principles Of Electric Circuits
Ch. 5 - (a) Show how you would rewire the protoboard in...Ch. 5 - How is the circuit changed when pin 2 and pin 3 in...Ch. 5 - Determine the total resistance in Figure 5-10(a)...Ch. 5 - What is the total resistance for the following...Ch. 5 - Determine the value of R4 in Figure 5-12 if the...Ch. 5 - Find RT for three 1.0 k resistors and two 720 ...Ch. 5 - What is the value of R2 if the highest current is...Ch. 5 - Determine V3 if the polarity of VS2 is reversed in...Ch. 5 - Starting with Equation 5-5, prove that the...Ch. 5 - What is the power in the circuit of Figure 5-48 if...
Ch. 5 - Determine the minimum power rating required for...Ch. 5 - Assume that R1 is shorted In Figure 5-61. What...Ch. 5 - A series circuit can have more than one path for...Ch. 5 - The total resistance of a series circuit can be...Ch. 5 - If two series resistors are different sizes, the...Ch. 5 - If two series resistors are different sizes, the...Ch. 5 - If three equal resistors are used in a voltage...Ch. 5 - There is no valid electrical reason for installing...Ch. 5 - Kirchhoffs voltage law is valid only if a loop...Ch. 5 - Prob. 8TFQCh. 5 - Prob. 9TFQCh. 5 - If point A in a circuit has a voltage of +10 V and...Ch. 5 - Two equal-value resistors are connected in series...Ch. 5 - Prob. 2STCh. 5 - Prob. 3STCh. 5 - When one of four series resistors is removed from...Ch. 5 - Prob. 5STCh. 5 - A 9 V battery is connected across a series...Ch. 5 - While putting four 1.5 V batteries in a four-cell...Ch. 5 - If you measure all the voltage drops and the...Ch. 5 - There are six resistors in a given series circuit...Ch. 5 - A series circuit consists of a 4.7 k, a 5.6 k, and...Ch. 5 - Which of the following series combinations...Ch. 5 - The total power in a certain circuit is 1 W. Each...Ch. 5 - When you connect an ammeter in a series-resistive...Ch. 5 - While checking out a series-resistive circuit, you...Ch. 5 - With a 10 V voltage source connected between...Ch. 5 - For the conditions described in Question 1, the...Ch. 5 - When the switches are in position 1 and a short...Ch. 5 - When the switches are in position 2 and a short...Ch. 5 - If the current shown by one of the milliammeters...Ch. 5 - If the source voltage decreases, the current...Ch. 5 - If the current through R1 increases as a result of...Ch. 5 - If the switch is thrown from position A to...Ch. 5 - If the switch is thrown from position B to...Ch. 5 - If the switch is thrown from position C to...Ch. 5 - If R1 is changed to 1.2 k, the voltage from A to B...Ch. 5 - If R2 and R3 are interchanged, the voltage from A...Ch. 5 - If the source voltage increases from 8 V to 10 V,...Ch. 5 - Connect each set of resistors in Figure 563 in...Ch. 5 - Determine the groupings of resistors in Figure 564...Ch. 5 - Determine the nominal resistance between pins 1...Ch. 5 - Determine the nominal resistance between pins 2...Ch. 5 - On the double-sided PC board in Figure 565,...Ch. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Calculate RT for each circuit of Figure 566....Ch. 5 - What is the total resistance of twelve 5.6 k...Ch. 5 - Six 56 resistors, eight 100 resistors, and two...Ch. 5 - Prob. 11PCh. 5 - You have the following resistor values available...Ch. 5 - Find the total resistance in Figure 566 if all...Ch. 5 - What is the total resistance from A to B for each...Ch. 5 - What is the current through each resistor in a...Ch. 5 - The current from the source in Figure 569 is 5 mA....Ch. 5 - Show how to connect a voltage source and an...Ch. 5 - Using 1.5 V batteries, a switch, and three lamps,...Ch. 5 - What is the current in each circuit of Figure 570?...Ch. 5 - Determine the voltage drop across each resistor in...Ch. 5 - Three 470 resistors are connected in series with...Ch. 5 - Four equal-value resistors are in series with a 5...Ch. 5 - What is the value of each resistor in Figure 571?...Ch. 5 - Determine VR1, R2, and R3 in Figure 5-72. Figure...Ch. 5 - For the circuit in Figure 573 the meter reads 7.84...Ch. 5 - Determine the current measured by the meter in...Ch. 5 - Refer to Figure 5-75. Assume the green LED drops...Ch. 5 - Refer to Figure 5-76. Assume there is a 2.0 V drop...Ch. 5 - Series aiding is a term sometimes used to describe...Ch. 5 - The term series opposing means that sources are in...Ch. 5 - Determine the total source voltage in each circuit...Ch. 5 - Prob. 32PCh. 5 - Five resistors are in series with a 20 V source....Ch. 5 - Determine the unspecified voltage drop(s) in each...Ch. 5 - In the circuit of Figure 5-79, determine the...Ch. 5 - Find R1, R2, and R3 in Figure 580. Figure 580Ch. 5 - Determine the voltage across R5 for each position...Ch. 5 - The total resistance of a circuit is 560 . What...Ch. 5 - Determine the voltage between points A and B in...Ch. 5 - Determine the voltage with respect to ground for...Ch. 5 - Determine the minimum and maximum voltage from the...Ch. 5 - What is the voltage across each resistor in Figure...Ch. 5 - Prob. 44PCh. 5 - If there are 10 V across R1 in Figure 5-86, what...Ch. 5 - Prob. 46PCh. 5 - Prob. 47PCh. 5 - Five series resistors each handle 50 mW. What is...Ch. 5 - If you double the voltage across a resistor, by...Ch. 5 - If the total resistance of a circuit is halved,...Ch. 5 - What is the total power in the circuit in Figure...Ch. 5 - The following W resistors are in series: 1.2 k,...Ch. 5 - Find RT in Figure 587.Ch. 5 - A certain series circuit consists of a W...Ch. 5 - Determine the voltage at each point with respect...Ch. 5 - In Figure 589, how would you determine the voltage...Ch. 5 - Determine the voltage at each point with respect...Ch. 5 - In Figure 589, what is VAC?Ch. 5 - In Figure 589, what is VCA?Ch. 5 - A string of five series resistors is connected...Ch. 5 - By observing the meters in Figure 590, determine...Ch. 5 - What current would you measure in Figure 590(b) if...Ch. 5 - Table 52 shows the results of resistance...Ch. 5 - You measure 15 k between pins 5 and 6 on the PC...Ch. 5 - In checking out the PC board in Figure 591, you...Ch. 5 - The three groups of series resistors on the PC...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 1. The communication channel bandwidth is 25 MHz centered at 1GHz and has a noise power spectral density of 10^-9 W/Hz. The channel loss between the transmitter and receiver is 25dB. The application requires a bit rate of 200Mbps and BER of less than 10^-4. Excluding Mary FSK, Determine the minimum transmit power required.arrow_forward2. An existing system uses noncoherent BASK. The application requires a BER of <10^-5. The current transmit power is 25 Watts. If the system changes to a coherent BPSK modulation scheme, what is the new transmit power required to deliver the same BER?arrow_forward3. You are to design a 9-volt battery operated communication system that must last 3 years without replacing batteries. The communication channel bandwidth is 100 KHz centered at 5.8 GHz. The application requires a BER of <10^-5 and a data rate of 1 Mbps. The channel can be modeled as AWGN with a noise power spectral density of 10^-8 W/Hz. ((a) What modulation scheme would you use? B) what is the required capacity of the batteries? and (c) is the battery commercially available?arrow_forward
- Design a traffic light PIC microcontroller program with Green LED has 3 Sec Yellow LED has 0.5 Sec Red LED has 3 Sec RASAN4SSC20UT 8 RBOINT RB1 9 RB2 U1 PIC16F877A-I/PT 18 19 MCLRVPP RAOANO 20 RA1AN1 30 OSCICLKI 21 RAZAN2VREF-CVREF 31 OSC2CLKO RABAN3VREF+ 22 LED1 LED-3MM 〃 R1 330 RA4TOCKIC1OUT 23 7 VDD 28 VDD 6 VSS 29 VSS 24 LED2 LED-3MM R2 10 330 RB3PGM 11 + 14 RB4 38 RDOPSPO RB5 15 LED3 39 RD1PSP1 40 RD2PSP2 RB6PGC- RB7PGD 17 16 LED-3MM R3 330 41 RD3PSP3 2 RD4PSP4 RCOT1OSOTICKK 3 RDSPSPS RC1T10SICCP24 RD6PSP6 RC2CCP1 5 RD7PSP7 RC3SCKSCL RC4SDISDA 25 REORDANS RCSSDO 27 29 REIWRANG RC6TXCK- RE2CSAN7 RC7RXDT DAWWWW 32 35 36 37 42 43 44 1 12 NO 13 NC 33 NO 34 NCarrow_forward: +0 العنوان I need a detailed drawing with explanation しじ ined sove in peaper Anoting Q4// Draw and Evaluate √√√xy-²sin(y²)dydx PU+96er Lake Ge Q3// Find the volume of the region between the cylinder 2 = y² and the xy- plane that is bounded by the planes x = 1, x = 2, y = -2, and y = 2. T Marrow_forwardFind Va and Vb using Mesh analysisarrow_forward
- Please solve this question step by step and handwritten and do not use chat gpt or ai tools thank you very much!arrow_forwardPlease solve question c and d step by step and handwritten and do not use chat gpt or ai tools thank you very much!arrow_forwardPlease solve questions d,e,f step by step and handwritten and do not use chat gpt or ai tools thank you very much!arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning

Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Kirchhoff's Rules of Electrical Circuits; Author: Flipping Physics;https://www.youtube.com/watch?v=d0O-KUKP4nM;License: Standard YouTube License, CC-BY