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1. (a) How much excess charge must be placed on a copper sphere 25.0 cm in diameter so that the potential of its center, relative to in?nity, is 1.50kV?
(b) What is the potential of the sphere's surface relative to infinity?
Assume the output of a zener regulator circuit drops from 8.0 V with no load to 7.8 V with a 500Ω load. What is the percent load regulation
An output pulse of 5μs duration is to be generated by a 74LS122 one-shot. Using a capacitor of 10,000 pF, determine the value of external resistance required.
The signal cos(2πt) is of course periodic .What is the period ?
In a FWR circuit using an LC filter, , μF and RLΩ. Calculate Idc , Vdc , ripple factor for an input of ( ) . Sol: = sin
Estimate the required radius, R, of each plate. The capacitor is set to the maximum 400 pF and is charged to 10 V through a 50 kΩ resistor. Determine the initial value of current flowing.
you borrowed $10000 from a local bank with the agreement that you will pay back the loan in five years the pay back plan includes two parts: a graduated payment plan with the first payment set at 1500 at year 1 and a gradient of $600 afterward
Design a MOS differential amplifier to operate from +/- 1V power supplies and dissipate no more than 2 mW in the equilibrium state. The differential voltage gain Ad is to be 5 V/V and the output common-mode dc voltage is to be 0.5 V.
A signal x[n] is formed by sampling a signal x(t) = -4sin(200*pi*t) at a sampling rate of 400Hz. Graph x[n] over 10 fundamental periods versus discrete time. Then do the same for the sampling frequencies of 60 and 200Hz.
The resistance per 304.8 m of copper wire uses in the extension cord of AWG 14,12,10,8 and 6 are 2.58,1.62, 1.02, 0.64 and 0.41 respectively. Assume a 2% allowable voltage drop. Show all working .
Thin Manganin wire of the length l = 0.5 m is glued to the electrically insulating rod. The insulating rod is subsequently stretched by applying axial mechanical force. Prior to stretching the resistance of Manganin wire was R0 = 10 ? and after a..
A box contains 50 diodes of which 10 are known to be bad. If the first diode drawn from the box was good, what is the probability that a second diode drawn will be good
The design specifications for a simple inverting amplifier require an input resistance of 10kOhm and a voltage gain, A=-6.2 a) prepare a design using an ideal OpAmp b)If a real OpAmp with the properties: Ri=2MOhm, A=200k, Ro=75Ohm
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