Principles Of Electric Circuits
10th Edition
ISBN: 9780134879482
Author: Floyd, Thomas L.
Publisher: Pearson,
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Chapter 6, Problem 12RP
If you need to obtain a total resistance of 130 Ω, what value can you place in parallel to the parallel combination of 330 Ω and 270 Ω? First find the value of 330 Ω and 270 Ω in parallel and treat that value as a single resistor.
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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=
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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 6 Solutions
Principles Of Electric Circuits
Ch. 6 - Five resistors are positioned on a protoboard as...Ch. 6 - How would you connect all of the resistors in...Ch. 6 - If a third branch is added to the circuit in...Ch. 6 - Determine IT and I2 if a fourth branch is added to...Ch. 6 - How much current will an ammeter measure when it...Ch. 6 - When the brake lights are applied, the total...Ch. 6 - If a 33 resistor is connected in parallel in...Ch. 6 - Calculate the total resistance connected to the...Ch. 6 - If two of the speakers are removed, what is the...Ch. 6 - The basic circuit for a rear window defroster can...
Ch. 6 - If you need to obtain a total resistance of 130 ,...Ch. 6 - Sometimes a direct measurement of resistance is...Ch. 6 - Determine the current through RL in Figure 6-0...Ch. 6 - Figure 6-35 Determine the current through each...Ch. 6 - Determine the total amount of power in the...Ch. 6 - The amplifier in one channel of a stereo system as...Ch. 6 - In Figure 6-51, there is a total current of 31.09...Ch. 6 - Your ohmmeter indicates 9.6 k between pin 2 and...Ch. 6 - A 330 resistor, a 270 resistor, and a 68 ...Ch. 6 - Refer to Figure 6-83 If R7 opens, the resistance...Ch. 6 - Determine whether or not all the resistors in...Ch. 6 - The following currents are measured in the same...Ch. 6 - There is a total of 500 mA of current into five...Ch. 6 - In the circuit of Figure 6-65, determine the...Ch. 6 - The electrical circuit in a room has a ceiling...Ch. 6 - The following resistors are connected in parallel:...Ch. 6 - What is the total current in each circuit of...Ch. 6 - Find the values of the unspecified quantities...Ch. 6 - What is the current through each resistor in...Ch. 6 - Determine all of the resistor values in Figure...
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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
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