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The circuit shown in Figure P4.24 has been set up for a long time prior to t = 0 with the switch closed. Find the value of vC prior to t = 0. Find the steady-state value of vC after the switch has been opened for a long time.
A parallel RLC circuit is constructed using a 1 mH inductor anda 12 μF capacitor. a) Select R such that the circuit response is critically damped. b) If vC(0-) = 12 V and iL(0-) = 0 A, find an expression for vC(t)value for t > 0 s.
A 10V supply is connected in series with a resistor and 3 diodeswith the output taken with respect to the three diodes together to ground. The problems asks to find the value of the resistor provided that the output voltage is 2.4 and the diodes h..
Show that the time displacement in a periodic function has no effect on the magnitude spectrum, but changes the phase spectrum by an amount of -nω0τ radians for the component of the frequency nω0 if the time displacement is τ.
Boron donor atome at a concentration of 10^15 cm^-3 are distributed uniformley throughout a silicon sample. The sample is then also doped with 6*10^15 cm^-3 of phosphorous. calculate the position of the Fermi level
What is the capacitance ratio for the capacitors with Ta2O5 and oxide/nitride/oxide dielectrics for the same thickness, provided the oxide/nitride/oxide has thickness ratio 1:1:1 for the oxide to the nitride.
A CT has a current ratio of 100/1. If the primary load current is 100 A, determine the excitation current, the maximum ratio error and the maximum phase angle error if the burden is 5 ohms. The CT characteristic gives an excitation current of 0.01..
What is electric potential at the center of the circle and What is the electric field (magnitude and direction) at the center of the circle
Why can't a video signal such as an NTSC analog television signal be transmitted over a two km length of loaded twisted pair cable with a frequency range 300 Hz to 3,400 Hz? What is the bandwidth occupied by an NTSC video signal?
Electrons are liberated with zero velocity from the negative plate of a parallel plate capacitor, to which is applied a magnetic flux density B parallel to the plates. Prove that these electrons will not reach the positive plate.
An intercom system has a 13 kHz annoying whistle with amplitude of 20% of a typical voice signal. Assume that a typical voice signal has a frequency of 3 kHz and the intercom's output for a typical voice level has amplitude of 10V.
Three capacitors are found that each have an impedance of -j2.0, and they are connected in parallel with the load in a wye configuration. Determine the power factor of the combined load as seen by the source.
Compare the capacities of the fiber and conducting cables. How many of the conducting cables are required to equal the capacity of the fiber cable.
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