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(a) a resistace heating element fed from an AC bus is controlledby an AC ( semi-conductor ) switch with integral half cyclecontrol. the base period is 20 half cycles of the AC supply.determine the number of half cycles for which the AC switch shouldbe gated to bring down the heating power to 30 % of the maximum.
(b) a single phase resistance load is supplied from a 120 V AC busin sereies with phase controlled static AC switch. The firing delayangle is 60 degree. determine the rms value of the load voltage. If we had used integral half cycle control with a base period of 20half cycles, what would be the equvalent numer of on half cyclesfor the same load power.
(c) An AC load circuit consists of a resistance of 30 Ω in sereiswith an inductance of 0.2 H. It is fed from a 120 V, 60 Hz AC source.determine the conduction interval in half cycle for a firing delay of 100 degree.
Write a switch statement to print out "Odd" or "Even" for each integer that is typed on the keyboard depending on whether the integer is odd or even. Only integers from 0 to 9 can be typed on the keyboard.
Write a three function program. The main function must create a string array with room for 10 elements. The main function should call the second function passing it the array as the first argument and the size of the array as the second argument.
What is the equivalent input noise resistance of an amplifier known to produce 20 V of equivalent input noise over a bandwidth of 750 kHz
A voltage divider has a 5 V source and two 150 kilo ohm resistors. What is the voltage across(a) an ideal voltmeter (b) a voltmeter with an input resistance of 10 mega ohms
Your circuit should consist of only the following elements: one 1 ohm resistor, one 2 ohm resistor, three 10 ohm resistors, three ideal constant voltage sources, and three ideal ammeters,
Invesitagtion of Intermodulation through an amplifier, An amplifier is designed to handle frequencies around 9 GHz. The bandwidth of the amplifier is 2 GHz with a center frequency of 9 GHz
The average intensity of sunlight reaching the earth is 1390W/m2. A charge of 2.38 x 10-8 C isplaced in the path of this electromagnetic wave. What is the magnitude of the maximum electric force that the charge experiences
Analog data having highest harmonic at 30 kHz generated by a sensor has been digitized using 6 level PCM. What will be the rate of digital signal generated
What RF bandwidth is required to send the data using QPSK? If the RRC filters in the transmitter and receiver are replaced with ones that have ? = 0.20, what are the new RF bandwidths in parts (a) and (b)?
The transfer function of a second order system is given: T(s) = 1.05x10^7/(s^2 + (1.6x10^3)s + 1.05x10^7) a Find the values of f, fn, Ts, Tp, Tr, and % Overshoot.
A balanceed three-phase load of 15 MA with a lagging load factor of 0.85 is supplied by a 115KV subtransmission line. if the line impedance is 50+j100Ohm per phase, determine the following: (a) The line current of the load.
A transmission line is loaded by a 96 % efficiency antenna that radiates 35 Watts into space. The antenna has a 30 dB gain and has a radiation resistance of 85-ohm. This line is loaded by a matched source TX.
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