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Consider the battery charging circuit shown in Figure. The ac source has a peak value of 24 V and a frequency of 60 Hz. The resistance is 2 Ω, the diode is ideal, and VB = 12 V. Determine the average current (i.e., the value of the charge that passes through the battery in 1 second). Suppose that the battery starts from a totally discharged state and has a capacity of 100 ampere hours. How long does it take to fully charge the battery?
A voltage source V = 119
For a face centered cubic, the volume of a conventional unit cell is a^3 Find the volume of a fcc primitive unit cell with three basis vectors: (0,0,0 --> a/2,0,a/2) and (0,0,0 --> a/2,a/2,0), and (0,0,0 --> 0,a/2,a/2)
causal LTI discrete system whose transfer function is given by: (H(z) = (z - 0.5) / ((z-e^{ln(0.16/z)})(z-0.2))\) find the impulse response sequence, h[k], for all k. Check initial and final values of the impulse response sequence using appropriate m..
Use MATLAB to compute the inverse Laplace transform of X(s)=(s^2+2s+1)/(s(s+1)(s^2+10s+50)) and determine the value of x(t) in the steady state. How would you be able to obtain this value without computing the inverse? Explain.
An OP-07 operational amplifier has ca GBW of 0.5 MHz and a slew rate of 0.17 V/s. If the closed loop gain is set to 15:
An n-type semiconductor is known to have an electron concentration of 5 × 10 ^17 m-3 . If the electron drift velocity is 350 m/s in an electric field of 1000 V/m, calculate the conductivity of this material.
Because scope only measures voltages, we need to “convert” the diode current into a voltage that the scope can measure by adding a resistorR in series with the diode as is seen in Fig. 1 below (iD = iR = vR/R). Furthermore, in order to “see” the plot..
Saturated and unsaturated synchronous reactance, The following readings are taken from the results of an open- and a short-circuit test on a 9375-kVA three-phase Y-connected
24 Volt source. Into a 2ohm fuse with 60ma following through.Seperates into R1 and Device 2 which requires 24V, 480mW to operate. Calculate R1.
An AC circuit design for balancing a load in AC circuits. The only power supply availablehas an internal resistance of 75Ω. The load has a resistanceof 600Ω. You want to deliver the maximum power possible tothe load by properly selecting X1 and X2..
A torque of 10 N.m is applied to a uniform disk shaped flywheel. The flywheel has a mass of 20kg and a radius of 0.5m. At t=0, the flywheel is at rest. How much energy is stored in the flywheel at the end of 20 sec
I placed several aluminum pie plates on top of the large metal sphere of the van de Graaff machine and then turned it on. After a few seconds the pie plates flew off. Explain why. Focus on physics involved.
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