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Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 375w and -50w.
Calculate;i)power factor of the motor at no load
ii)phase difference of voltage and current in two wattmeters.
A parallel RLC network is constructed with a 5 mH inductor, and the remaining component values are chosen such that Q0 = 6.5 and ω0 = 1000 rad/s. Determine the approximate value of the input impedance magnitude for operation
At furnace start-up the wall is at an initial temperature of Tj = 300 K, and combustion gases at T8 = 1300 K enter the furnace, providing a convection coefficient of h = 25 W/m2 · K at the ceramic film. Assuming the film to have negligible thermal..
The transfer equation is V_out/V_in. if you factor the second order polynomial what are the two first order polynomials. How do these compare with the first order filter. Has the -3db changed.
Simulate the second-order RLC circuit using simpower Matlab simulink.This circuit has DC source voltage Vs=220V, Inductance L=2mH and Resistance R=160 ohms.Determine the capacitance values for each case
Assume that the outputs are matched.
Let the input to a singly-balanced mixer, f(t), be given by V0 Sin (2 pi fs t). The local oscillator input p(t) is a square wave, alternating between 0 and +1 volt. The freqency of the square wave is 10 MHz, while for the input, fs is 100 KHz.
An analog voice signal that can vary over the range 0.50 mA is digitized by sampling it at 8 kHz. The first four sample values are 10, 21, 36, and 16 mA. Write the corresponding digital signal (a string of 1 and 0 bits) by using a 4-bit representa..
Show that the law of conservation of classical momentum is invariant under the Galiliean transformation if and only if total mass is conserved
determine the following by sloving laplace equations: a) the potential and electric field distribution in the dilectric slab. b) the potential and electric feild distrivution in the air space between the dilectric slab and the upper plate and c) t..
Find the load dc current and find the rms of the ac current input to the rectifier - Plot the Simulink rectifier input voltage and load voltage on the same plot
The incoming solar radiation at a place on the surface of the earth is 1.2kW/m2 . the amplitude of electric field corresponding to this included power is nearly equal to
The resonance frequency of an L-C circuit depends on the inductance L [volt • sec/amp) and the capacitance C [amp • sec/volt]. By using dimensional considerations, find how this frequency will change if the capacitance is doubled.
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