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A single phase transformer having short circuit test values are at 50hz given like 20volt ,40amp ,085 p.f When the test is done at 25hz the what are the values Any body.
Please give me the complete solution
Suppose you want to use external components to configure a comparator in order to provide hysteresis for the input. Show how you would configure such a comparator with hysteresis input.
Suppose that V1 (t)=100cos(ωt) and V2 (t)= 100sin(ωt). Use phasors to reduce the sum Vs (t)=V1 (t)+V2(t) to a single term of the form Vm cos(ωt+θ). Draw a phasor diagram, showing V1, V2 ,and Vs. State the phase relationships between each pair of t..
A logic circuit realizes the function F(a,b,c,d) =a'b'+a'cd+ac'd+ab'd'. Assuming that a = c never occurs when b=d=1,find a simplified expression for F.
The FM input to a PLL demodulator has an unmodulated center frequency of 10.7 MHZ. (a) To what frequency must the VCO be set (b) From which circuit is the recovered modulating signal taken
How is the problem-solving process different when programming in assembly language versus programming in ladder logic?
Some of this is due to high frequency effects, and some is due to the relationship of the wavelength of the signal being set over the wire to the length of the conductor. describe both of these limitations and their effects
Bit 4 of Port B is connected to a switch that normally outputs a zero. Monitor this switch to detect a change from zero to one. Immediately when it becomes one, call a function to toggle Bit 5 of Port B, which is connected to an LED.
1 how do you find the calculus the derivative and integral of a sinewave? 2 how do you show that a triangle wave can be
Gaussian White Noise with Power Spectral Density Sn(f) = 10 mu W/Hz is applied to a linear system with impulse response h(t) = exp(- |5t|)u(t)cos(2 phi 10t) Write the equation for the Power Spectral Density of the noise passed through the system
A nnpn transistor has an emitter area of 10mm x10mm. The dopingconcentrations are as follows: in the emitterNd=1019 cm3, in the baseNa=1017 cm3, and the collectorNd=1015 cm3. The transistoris operating at T=300K.
(a) optimally combine the present radar system with a new radar system that has a measurement variance of 6; or, (b) optimally combine the present radar system with two new radar systems that both have the same perormance as the original system.
A signal x(t) can be represented as x(t)=xe(t)+xo(t) where xe(t)=(1/2){x(t)+x(-t)} is the even part, and xo(t)=(1/2){x(t)-x(-t)} is the odd part of the signal. Let x(t) be an energy signal with an energy of 20 Joules. Suppose the even part of x(t) is..
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