Principles Of Electric Circuits
10th Edition
ISBN: 9780134879482
Author: Floyd, Thomas L.
Publisher: Pearson,
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Chapter 2, Problem 4RP
A certain resistor has a yellow first band, a violet second band, a red third band, and a gold fourth band. Determine its value in ohms and its percent tolerance.
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PSD
A certain signal f(t) has the following PSD (assume 12 load):
| Sƒ(w) = π[e¯\w\ + 8(w − 2) + +8(w + 2)]
(a) What is the mean power in the bandwidth w≤ 1 rad/sec?
(b) What is the mean power in the bandwidth 0.99 to 1.01 rad/sec?
(c) What is the mean power in the bandwidth 1.99 to 2.01 rad/sec?
(d) What is the total mean power in (t)?
Pav=
+
2T
SfLw) dw
- SALW)
An AM modulation waveform signal:-
p(t)=(8+4 cos 1000πt + 4 cos 2000πt) cos 10000nt
(a) Sketch the amplitude spectrum of p(t).
(b) Find total power, sideband power and power efficiency.
(c) Find the average power containing of each sideband.
Can you rewrite the solution because it is
unclear?
AM
(+) = 8(1+ 0.5 cos 1000kt +0.5 ros 2000ks)
=
cos 10000 πt.
8 cos wat + 4 cos wit + 4 cos Wat coswet.
-Jet
jooort
J11000 t
= 4 e
jqooort jgoort
+4e
+ e
+e
j 12000rt.
12000 kt
+
e
+e
jooxt
igoo t
te
(w) = 8ES(W- 100007) + 8IS (W-10000)
USB
Chapter 2 Solutions
Principles Of Electric Circuits
Ch. 2 - How many coulombs do 93.8 1016 electrons...Ch. 2 - How much energy is required to move 50 C from one...Ch. 2 - If there are 2.0 A of current through the filament...Ch. 2 - A certain resistor has a yellow first band, a...Ch. 2 - A certain resistor has a yellow first band, a...Ch. 2 - What is the resistance indicated by 1K25?Ch. 2 - What is the cross-sectional area of a 0.0015 in....Ch. 2 - Use Table 2-3 to determine the resistance of 100...Ch. 2 - Related Problem In Figure 257 the switch is moved...Ch. 2 - The number of protons in the nucleus is the atomic...
Ch. 2 - The outermost shell of an atom contains the...Ch. 2 - Silicon and germanium are classed as insulators.Ch. 2 - The unit of charge is ampere.Ch. 2 - Like charges repel.Ch. 2 - Coulombs law shows the relationship of the energy...Ch. 2 - A battery stores charge.Ch. 2 - An ideal voltage source can provide a constant...Ch. 2 - A volt can be defined in terms of energy per...Ch. 2 - A fuel cell combines a fuel with an oxidizer to...Ch. 2 - The unit of current is coulomb.Ch. 2 - In a 5-band precision resistor, the fourth band is...Ch. 2 - A resistor with a single black band represents...Ch. 2 - A resistor labeled 0R1 is 1 ohm.Ch. 2 - A rheostat performs the same function as a...Ch. 2 - A strain gauge changes resistance in response to...Ch. 2 - Prob. 17TFQCh. 2 - A circular mil is a unit of area.Ch. 2 - The three basic measurements that can be done by a...Ch. 2 - If a GFCI breaker detects a difference in the hot...Ch. 2 - A neutral atom with an atomic number of three has...Ch. 2 - Electron orbits are called 1. shells 2. nuclei 3....Ch. 2 - Materials in which there is no current when...Ch. 2 - When placed close together, a positively charged...Ch. 2 - The charge on a single electron is 1. 6.25 1018 C...Ch. 2 - Potential difference is another term for 1. energy...Ch. 2 - The unit of energy is the 1. watt 2. coulomb 3....Ch. 2 - Which one of the following is not a type of energy...Ch. 2 - Which one of the following is not a possible...Ch. 2 - Electrical current is defined as 1. the reciprocal...Ch. 2 - There is no current in a circuit when 1. a switch...Ch. 2 - The primary purpose of a resistor is to 1....Ch. 2 - Wire resistance depends on the 1. type of material...Ch. 2 - Potentiometers and rheostats are types of 1....Ch. 2 - The current in a given circuit is not to exceed 22...Ch. 2 - The neutral line in a ac utility should 1. have...Ch. 2 - What is the charge in coulombs of the nucleus of a...Ch. 2 - What is the charge in coulombs of the nucleus of a...Ch. 2 - How many coulombs of charge do 50 1031 electrons...Ch. 2 - How many electrons does it take to make 80 C...Ch. 2 - Determine the voltage in each of the following...Ch. 2 - Five hundred joules of energy are used to move 100...Ch. 2 - What is the voltage of a battery that uses 24 J of...Ch. 2 - How much energy does a 12 V battery use to move...Ch. 2 - If a resistor with a current of 20 mA through it...Ch. 2 - List four common sources of voltage.Ch. 2 - Upon what principle is electrical generators...Ch. 2 - How does and electronic power supply differ from...Ch. 2 - A certain current source provides 100 mA to a 1 k...Ch. 2 - Determine the current in each of the following...Ch. 2 - Six-tenths coulomb passes a point in 3 s. What is...Ch. 2 - How long does it take 10 C to flow past a point if...Ch. 2 - How many coulombs pass a point in 0.1 s when the...Ch. 2 - 5.74 1017 electrons flow through a wire in 250...Ch. 2 - Find the conductance for each of the following...Ch. 2 - Find the resistance corresponding to the following...Ch. 2 - Determine the resistance values and tolerance for...Ch. 2 - Find the minimum and the maximum resistance within...Ch. 2 - Determine the color bands for each of the...Ch. 2 - Determine the resistance and tolerance of each of...Ch. 2 - Determine the resistance and percent tolerance for...Ch. 2 - From the selection of resistors in Figure 267,...Ch. 2 - Determine the color bands for each of the...Ch. 2 - Determine the resistance and tolerance of each of...Ch. 2 - Determine the color bands for each of the...Ch. 2 - The adjustable contact of a linear potentiometer...Ch. 2 - What resistance is indicated by 4K7?Ch. 2 - Determine the resistance and tolerance of each...Ch. 2 - Trace the current path in Figure 268(a) with the...Ch. 2 - With the switch in either position, redraw the...Ch. 2 - There is only one circuit in Figure 268 in which...Ch. 2 - In Figure 268, determine which (if any) circuits...Ch. 2 - In Figure 268, determine which (if any) circuits...Ch. 2 - Through which resistor in Figure 269 is there...Ch. 2 - Devise a switch arrangement whereby two voltage...Ch. 2 - Show how a single switch can be used to connect a...Ch. 2 - Show the placement of an ammeter and a voltmeter...Ch. 2 - Prob. 42PQCh. 2 - In Figure 271, how much voltage does each meter...Ch. 2 - In Figure 271, indicate how to connect an ammeter...Ch. 2 - In Figure 269, show the proper placement of...Ch. 2 - Show the proper placement of voltmeters to measure...Ch. 2 - What is the voltage reading of the meter in Figure...Ch. 2 - How much resistance is the ohmmeter in Figure...Ch. 2 - Determine the resistance indicated by each of the...Ch. 2 - What is the maximum resolution of a 4-digit DMM?Ch. 2 - Indicate how you would connect the multimeter in...
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- Can you rewrite the solution because it is unclear? AM (+) = 8(1+0.5 cos 1000kt +0.5 ros 2000 thts) = cos 10000 πt. 8 cos wat + 4 cos wit + 4 cos Wat coswet. J4000 t j11000rt $14+) = 45 jqooort +4e + e + e j 12000rt. 12000 kt + e +e +e Le jsoort -; goon t te +e Dcw> = 885(W- 100007) + 8 IS (W-10000) - USBarrow_forwardCan you rewrite the solution because it is unclear? Q2 AM ①(+) = 8 (1+0.5 cos 1000πt +0.5 ros 2000kt) $4+) = 45 = *cos 10000 πt. 8 cos wat + 4 cosat + 4 cos Wat coswet. j1000016 +4e -j10000πt j11000Rt j gooort -j 9000 πt + e +e j sooort te +e J11000 t + e te j 12000rt. -J12000 kt + с = 8th S(W- 100007) + 8 IS (W-10000) <&(w) = USB -5-5 -4-5-4 b) Pc 2² = 64 PSB = 42 + 4 2 Pt Pc+ PSB = y = Pe c) Puss = PLSB = = 32 4² = 8 w 32+ 8 = × 100% = 140 (1)³×2×2 31 = 20% x 2 = 3w 302 USB 4.5 5 5.6 6 ms Ac = 4 mi = 0.5 mz Ac = 4 ५ M2 = =0.5arrow_forwardA. Draw the waveform for the following binary sequence using Bipolar RZ, Bipolar NRZ, and Manchester code. Data sequence= (00110100) B. In a binary PCM system, the output signal-to-quantization ratio is to be hold to a minimum of 50 dB. If the message is a single tone with fm-5 kHz. Determine: 1) The number of required levels, and the corresponding output signal-to-quantizing noise ratio. 2) Minimum required system bandwidth.arrow_forward
- Find Io using Mesh analysisarrow_forwardFM station of 100 MHz carrier frequency modulated by a 20 kHz sinusoid with an amplitude of 10 volt, so that the peak frequency deviation is 25 kHz determine: 1) The BW of the FM signal. 2) The approximated BW if the modulating signal amplitude is increased to 50 volt. 3) The approximated BW if the modulating signal frequency is increased by 70%. 4) The amplitude of the modulating signal if the BW is 65 kHz.arrow_forwardAn FDM is used to multiplex two groups of signals using AM-SSB, the first group contains 25 speech signals, each has maximum frequency of 4 kHz, the second group contains 15 music signals, each has maximum frequency of 10 kHz. A guard bandwidth of 500 Hz is used bety each two signals and before the first one. 1. Find the BWmultiplexing 2. Find the BWtransmission if the multiplexing signal is modulated using AM-DSB-LC.arrow_forward
- An FM signal with 75 kHz deviation, has an input signal-to-noise ratio of 18 dB, with a modulating frequency of 15 kHz. 1) Find SNRO at demodulator o/p. 2) Find SNRO at demodulator o/p if AM is used with m=0.3. 3) Compare the performance in case 1) and 2).. Hint: for single tone AM-DSB-LC, SNR₁ = (2m²) (4)arrow_forwardFind Va and Vb using Nodal analysisarrow_forwardCalculate the nodal voltage in the circuitarrow_forward
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