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The output voltage of a voltage amplifier has been found to decrease by 20% when a load resistance of 1 k ohm is connected. What is the value of the amplifier output resistance?
Design a full wave (Bridge) rectifier as a dc power supply that provides a peak dc output voltage of 15V on which maxiumum of 5% ripple is allowed. The rectifier feeds a load of 200Ω. The rectifier is fed from the line voltage (120V rms, 60 Hz) th..
A bandlimited signal with maximum frequency of 3.3 kHz, what is the minimum sampling frequency to sample this signal If a sinusoidal signal of 7 kHz is sampled by this sampling frequency, what is the frequency of the alias.
A stun gun or TASER is designed to put out a few seconds worth of electric pulses that impress a voltage of about 1200 V across the human body. This results in an average current of approximately 3 mA into a human body.
a) Determine the closed-loop transfer function, T(s) = Output/Input = Y(s)/R(s) b)Find the time response, y(t) for a step input of r(t) = A for t>0 c)Using the final-value theorem, determine the steady-state value of the output y(t)
Design a circuit that given a 4-bit BCD digit(0-9) willproduce a 2-bit quotient and a 2-bit remainder for a division by3. This circuit will have four inputs the four bits of theBCD digit and four outputs 2 bits for the quotient and 2 bits forthe ..
the hd cable signal send out is usually ranging between (1-25mv), with the frequency range from 1000Hz- 20Khz. An amplifier will gain 46 db will boost the signal before sending it through the cable connection.
Calculate the percentage of electricity generation by these fuel-cell systems compared to the annual electricity generation in the U.S. of 3.8x109 MW-hrs
How fast, in rpm, would a 100 g, 50-cm diameter beach ball have to spin to have an angular momentum of 0.10 kg m^2/s
Express the field D = ( x + y ) ( x + y ) a)in cylindrical components and cylindrical variables b) Evaluate D at the point where = 2 , = 0.2 , and z = 5, expressing the result in cylindrical and rectangular components.
The following specification s are given for fours different temperature sensors. If the application requires a temperature variation of -50°C to 120°C and the measured value is -20°C, select the best sensor.
The cross section of a cottage 20 ft wide is an isosceles triangle. If the slope of a side is 1.75 and there is a second floor 9 feet above the ground floor,What is the angle at each tip of the cottage?
The silicon substrate is N-type (doping level ND = 7x10^16cm-3), and the gate is heavily doped N+-type polysilicon. Assuming zero oxide charge density, determine the density of mobile charge at the semiconductor surface, if the voltage applied bet..
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