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Which parameters of an op-amp become significant for a fast varying ultra low input voltage signal? What should be the values of these parameters for a triangular wave

signal of ±5 mV peak to peak with 50 MHz frequency given to a unity gain op-amp amplifier?

signal of ±5 mV peak to peak with 50 MHz frequency given to a unity gain op-amp amplifier?

Suppose that Vmax value read from the graticule on an oscilloscope screen is 4.6 divisions and Vmin is 0.7 divisions. Calculate the modulation index and percentage of modulation.

Design and draw the circuit using op-amp to provide the output voltage obeying following relation of input voltages:

Vo = –10V' –0.3 (dV2/dt) –2V"

Vo = –10V' –0.3 (dV2/dt) –2V"

signal of ±5 mV peak to peak with 50 MHz frequency given to a unity gain op-amp amplifier?

voltage signal? What should be the values of these parameters for a triangular wave

signal of ±5 mV peak to peak with 50 MHz frequency given to a unity gain op-amp

amplifier?

A direct motor is developing 90.6kW at a speed of 2000r/min. The motor is connected to a 480V supply. The cost of electrical energy is 45.4c/kWh and the efficiency of the motor is 86.4%. Calculate the torque available at the shaft of the motor

With the technology scaling and process improvement, do you think that existing CMOS (complementary metal-oxide semiconductor) will be able to exist in future?

charging and discharging characteristics of DC

(a) Here is the information about the circuit.

Capacitor = 100 nF , Resistor = 47 kΩ ,Supply voltage = 5 V

Charging characteristic for a series capacitive circuit:

v=v(1 − e−t/RC)

Investigate what the other terms in this expression mean.

Calculate the time constant for the circuit.

Use a spreadsheet to plot the charging curve over the range 0 to

20 ms (milliseconds).

Investigate the meaning of ‘time constant’ and from your graph

estimate a value. Compare this with your calculated one.

Differentiate the charging equation and find the rate of change of

voltage at 6 ms.

From your graph measure the gradient at 6 ms and compare this with

the calculated value.

(b) Now investigate the discharging characteristic of the circuit but with a 22 kΩ resistor

fitted.

Calculate and estimate the rate of change of voltage when t = T.

(a) Here is the information about the circuit.

Capacitor = 100 nF , Resistor = 47 kΩ ,Supply voltage = 5 V

Charging characteristic for a series capacitive circuit:

v=v(1 − e−t/RC)

Investigate what the other terms in this expression mean.

Calculate the time constant for the circuit.

Use a spreadsheet to plot the charging curve over the range 0 to

20 ms (milliseconds).

Investigate the meaning of ‘time constant’ and from your graph

estimate a value. Compare this with your calculated one.

Differentiate the charging equation and find the rate of change of

voltage at 6 ms.

From your graph measure the gradient at 6 ms and compare this with

the calculated value.

(b) Now investigate the discharging characteristic of the circuit but with a 22 kΩ resistor

fitted.

Calculate and estimate the rate of change of voltage when t = T.

calculate the factor of safety in operation for a component subjected to combined direct and shear loading against given failure criteria

assume that the body can be

modeled as a simple resistive element. Assuming the

electrodes are identical, draw the electrical circuit model

of the impedance seen by the impedance measurement

system. Find an equation of the impedance as a function

of s (recall that a resistor of value R has an impedance ZR

= R; a capacitor of value C has an impedance ZC = 1/(sC)).

modeled as a simple resistive element. Assuming the

electrodes are identical, draw the electrical circuit model

of the impedance seen by the impedance measurement

system. Find an equation of the impedance as a function

of s (recall that a resistor of value R has an impedance ZR

= R; a capacitor of value C has an impedance ZC = 1/(sC)).