Delmar's Standard Textbook of Electricity (MindTap Course List)
6th Edition
ISBN: 9781285852706
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 1, Problem 2RQ
How many times smaller is an electron than a proton?
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Design a control circuit so a 24 V relay , start button, and a stop push button (on/off with memory) operates an electromechanical relay to control a 230 V solenoid
Next, Redraw the previous circuit and add a 24 V red lamp to indicate the relay coil is on, a 230 V yellow lamp to indicate the solenoid is on, green lamp to indicate the solenoid is off. Use only one relay, which has multiple contacts.
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EXAMPLE 6.3
Suppose the Fourier transform of a pulse is as follows:
(1-a)
Ть.
2Ть
H(f) = <
α
(To) (-Tof+
1 +a
(1-a)
(1+α)
·<|f|≤·
2
2ть
2Ть
(1+α)
0,
<\f\
2Ть
where 0≤a≤1. Show that this pulse in both time and frequency domains satisfies the Nyquist
criterion.
Chapter 1 Solutions
Delmar's Standard Textbook of Electricity (MindTap Course List)
Ch. 1 - What are the three principal parts of an atom, and...Ch. 1 - How many times smaller is an electron than a...Ch. 1 - State the law of charges.Ch. 1 - How many times more does a proton weigh than an...Ch. 1 - How many valence electrons are generally contained...Ch. 1 - How many valence electrons are generally contained...Ch. 1 - What is electricity?Ch. 1 - What is a gluon?Ch. 1 - It is theorized that protons and neutrons are...
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- EXAMPLE 4.4 In a binary symmetric communication (BSC) channel, the input bits transmitted over the channel are either 0 or 1 with probabilities p and 1-p, respectively. Due to channel noise, errors are made. As shown in Figure 4.4, the channel is assumed to be symmetric, which means the probability of receiving 1 when 0 is transmitted is the same as the probability of receiving 0 when 1 is transmit- ted. The conditional probabilities of error are assumed to be each e. Determine the average prob- ability of error, also known as the bit error rate, as well as the a posteriori probabilities.arrow_forwardWhat is the bandwidth requirement in Hz for baseband binary transmission at 64 kbps, if the roll-off factor is 0.25?arrow_forwardEXAMPLE 6.4 Suppose the roll-off factor is 25% and the bandwidth of a baseband transmission system satisfying the Nyquist criterion is 30 kHz. Determine the bit rate. Solution 1+α 1arrow_forward
- EXAMPLE 4.9 In a communication system, the noise level is modeled as a Gaussian random variable with m=0 and ² = 0.0001. Determine P(X > 0.01) and P(-0.04 ≤x≤ 0.05). 3arrow_forwardSuppose the random variable X is uniformly distributed between 0 and 1 with probability 0.25, takes on the value of 1 with probability p, and is uniformly distributed between 1 and 2 with probability 0.5. Determine p as well as the pdf and cdf of the random variable Xarrow_forwardconstants: A (medium) single phase transmission line 100 km long has the following Resistance/km = 0.25 2; Susceptance/km = 14 × 10 siemen; Reactance/km = 0.8 Receiving end line voltage = 66,000 V Assuming that the total capacitance of the line is localised at the receiving end alone, determine (i) the sending end current (ii) the sending end voltage (iii) regulation and (iv) supply power factor. The line is delivering 15,000 kW at 0.8 power factor lagging. Draw the phasor diagram to illustrate your calculations.arrow_forward
- For the power system given below, the voltage at bus 2 is kept at 1.03 pu. The maximum power can be delivered by G2 is 35 MW. Obtain the load flow solution. Take the base power 100 MVA. V₁ = 1.0520 G₁ 0.02+j0.06 G2 V2=1.03 P2 = 35 MW 0.08+j0.24 SL2 20+j50 MVA SL3 60+j25 MVA 0.06+j0.018arrow_forwardGeneral Directions: Read the questions carefully and answer (3*10=30marks) 1. Design a summing amplifier by choosing appropriate values of resistors an so that the output is 5 times the sum of the input voltages. (you are free to use any number of inputs, the type of op-amp, any value of resistors) 2. Derive the equation for the closed loop gain of the inverting and non-inverting Amplifier using appropriate circuit diagrams. 3. Determine the values read by the measuring devices using appropriate formulae www Voc +8V R₁ 33 k Rc 2.2 k ww WWW Poc 200 R₁₂ RE 10 kn 1.0 knarrow_forward十 : + B 日 العنوان I need a detailed drawing with explanation ややハメPV+96252 4 Project Homework: Create a simulation for a tank when the flowrate inside and outside the tank must range between 0 and 10 lit/s: 1) The level should be controlled within a range between more than zero to 1000 lit. 2) An alarm must be launched when the level is out of range (less than 100 and more than 900 lit). 3) When the capacity reaches to the maximum the motor turns OFF. area=A Qout -20 solve in lab view X9.01 *175*1arrow_forward
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