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Q. Three loads in parallel are supplied by a single phase 400-V, 60-Hz supply:
Load A: 10 kVA at 0.8 leading power factor
Load B: 15 kW at 0.6 lagging power factor
Load C: 5 kW at unity power factor
(a) Find the real power, reactive power, volt-amperes, and line current drawn from the supply by the combined load.
(b) If the supply line is to operate at 0.9 leading power factor, determine the value of the capacitance to be placed across the load.
.
Q. Methods for speed and torque control of induction motors? The following are methods available for speed and torque control of induction motors. • Pole-changing method
ubmission Deadline: Wednesday, July 7, 2021 Assignment 2 EE5543 - Satellite Communication Question 1: MEASAT-1 is located at 91.5 o E and operating at the base frequency of 10.982
Differentiate between n and p type semiconductors. n - Type semiconductor:- (i) If small amount of pentavalent impurity is added with, to a pure semiconductor giving a la
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Q. The energy stored in a 2-µH inductor is given by w L (t) = 9e -2t µJ for t ≥ 0. Find the inductor current and voltage at t = 1 s.
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The block diagram for a 3-bit ripple counter is shown in Figure (a). Obtain a state table for the number of pulses N = 0 to 8, and draw a state diagram to explain its operation.
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Explain how a p-n junction functions as a rectifier
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