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Two point charges outside grounded conducting sphere. A grounded (zero potential) conducting sphere and two point charges are located as shown in Figure 5.48.
(a) Calculate the electric field intensity at a general point outside the sphere.
(b) What is the electric field intensity inside the sphere? Explain.
The 288mH coil has 1000 turns and the coefficientbetween the coils is 1/3. The coupling medium isnonmagnetic. When coil 1 is excited when coil 2 open, theflux linking only coil 1 is 0.5 as large as the flux linking coil2.
If the voltage across a capacitor is a square wave, predict the resulting current waveform (draw the voltage and current waveforms). Repeat the process when the voltage across the capacitor is a sine wave.
For an armature-control DC motor the following parameters are given: ea=22V, f=5x10^-3 onz-in/rad/sec, J=4.27X10^-4 in-onz-sec^2, La=0, Ts=10 onz-in (stall torque), wo= 480 rad/sec (no load speed), K=7.66 in-onz/amp.
Suppose the firm has a fixed cost of $20,000 in preparing equipment prior to doing its first exploration. If each successful exploration costs $30,000 and each unsuccessful exploration costs $15,000, find the expected total cost to the firm for it..
Estimate the minimum window length L that will meet these requirements.
How large a resistor can be inserted in series with each drain connection while maintaining saturation - what is the largest resistor
Given the spectrum X(f) of an analog signal x(t), sketch the spectrum of its sampled version x[n], assuming a sampling rate of 50, 40, and 30 Hz. (a) X(f) = rect(f/40) (b) X(f) = tri(f/20)
How do resistors add in parallel versus in series? How do capacitors add in parallel versus in series? Are they different?
Evaluate the following convolutions using the graphical approach: h1[n]=2u[n+1]-2u[n] h2(t)=2u(t+1)-2u(n) y1[n]={2u[n+1]-4u[n]}*h1[n] y2(t)={r(t-2)-2r(t-4)+r(t-6)}*h2(t) Evaluate the step response of h1[n] and h2(t)
A coil with an impedence of 64.1 angle 51.4 degrees is connected in series with a resistance 22.5 ohms. The combination is supplied by 120 V source. Determine the coil and resistor voltages and the overall power factor.
a. If the signal is passed through an envelope detector, determine the output of the envelope detector. Is demodulation satisfactory b.What is the ratio of the max to min value of the signal at the output of the envelope detector
Optical Isolation of Electrophysiological Signals and design Guidelines for Optocoupler Safety Agency Compliance.
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