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A DC shunt motor rotating at 1560 RPM is supplied from a 240-V source. The line current supplied to the motor is equal to 27 A. The shunt field resistance of the motor is equal to 120 Ω and the armature resistance is equal to 0.6 Ω. Calculate the following:(a) The armature current of the machine.(b) The back-emf.(c) The output mechanical power and the net torque developed by the motor if its mechanical losses are equal to 280 W.
A 15 volts source is applied to a series 150 mH inductor and 169 pF capacitor. The resistance of the inductor plus the connecting wires is 1,6 W. Determine the voltage drop and
SUB Instruction Op code format is of SUB instruction is Replace the three bit code of the register R from to obtain the op code of the required SUB instruction . o
Q. Explain the conditions to be satisfied for sustained oscillations in an oscillator circuit with the help of block diagram. The essential condition for sustained oscillations
what is 2 bit counter?
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Q. With a direct current of I A, the power expended as heat in a resistor of Ris constant, independent of time, and equal to I 2 R. Consider Problem and find in each case the effe
Explain the properties of high resistivity materials. High resistivity materials: The conducting materials containing resistivity from 10 -6 to 10 -3 ohm-m come under such
Q. How and why are the grounding and shielding used in electronic instruments? Sol. In electronic instruments grounding and Shielding techniques are available in order to a
Q. A noninverting op-amp circuit and its closed-loop representation are given in Figure. Obtain an expression for the closed-loop transfer function H(ω) = Y (ω)/X(ω) and comment on
Q. Illustrates typical thermal noise waveform? In general, any physical resistor or lossy device can be modeled by a noise source in series with a noiseless resistor, as shown
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