Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 11, Problem 2RQ
What is a negative ion?
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1. In AM, 50% modulation indicates that
33.3%.11.1%).
of the total transmitted power is in the sidebands (0%,50%
2. To obtain coherent detection in AM receiver, an extra signal is added to the modulated signal, this signal
called
(PLL, IF carrier, pilot carrier, subcarrier).
3. The output spectrum of a
modulator includes upper-side, lower-side frequencies, and the carrier
frequency. (balanced, standard amplitude, SSB, none of the above)
4. When a signal is multiplied by the unit step function,
(the positive time range is suppressed, the
negative frequency range is suppressed, the negative time range is suppressed, the positive frequency range
is suppressed).
5. DSB-LC requires coherent detection at the receiver, if the type of modulation is
modulation, over modulation, critical modulation, none of them).
6. A continuous FT indicates a
7. In VSB transmission
signal. (continuous,…
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Chapter 11 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 11 - 1. Conduction in a liquid depends on the movement...Ch. 11 - What is a negative ion?Ch. 11 - 3. What is a positive ion?
Ch. 11 - Name three basic substances that can be used to...Ch. 11 - What is an electrolyte?Ch. 11 - 6. What is used to hold a sulfate ion together?
Ch. 11 - What is the negative terminal of a power source...Ch. 11 - Prob. 8RQCh. 11 - What determines the thickness of the coating...Ch. 11 - What is electrolysis?
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- Transmission line data:Data:• Active power of the load (P): 50 kW• Power factor of the load (PF): 0.8 (lagging)• Line-to-line voltage at the load (V_LC): 13.8 kV• Line resistance (R): 2 Ω• Line inductance (L): 0.8 H• Line capacitance (C): 0.0003 F• Required series compensation: 60% of the line impedance.• Line length: 250 kmDetermine:1. Characteristic impedance and propagation constant.2. The generalized long line constants A, B, C, D.3. Total voltage, current and power at the generating end.4. Voltage regulation.5. Parameters A, B, C, D of the compensation circuit.6. New generalized constants of the power system afterseries compensation.7. Conclusion of the results obtained.arrow_forward3.18 In a single-phase half-wave ac-dc converter, the average value of the load current is 1.78 A. If the converter is operated from a 240 V, 50 Hz supply and if the average value of the output voltage is 27% of the maximum possible value, calculate the following, assume the load to be resistive. (a) Load resistance (b) Firing angle (c) Average output voltage (d) The rms load voltage (e) The rms load current (f) DC power (g) AC power (h) Rectifier efficiency (i) Form factor (j) Ripple factorarrow_forwardTo find the Fourier series for the periodic function f(x) = 2 -2 when π < x < 0 - when 0 < x < πarrow_forward
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