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Solution for BARC EE Live Quiz Session held on 14th Mar
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Question 1
For the non inverting amplifier circuit shown, find maximum operating frequency. The slew rate is 0.5V/ µs.
Question 2
Given below is a block diagram of an electric circuit.
The transfer function for the given system is obtained as:
Determine the value of
The transfer function for the given system is obtained as:
Determine the value of
Question 3
A 10bit resistive divider is constructed such that the current through the LSB resistor is 100 μA. The maximum current that flow through the MSB resistor is ______ mA.
Question 4
The integral form of a Maxwell equation as given below, that depicts a time-varying magnetic field produces an electric field is popularly known as:
Question 5
An air-core toroid has a cross-sectional area of 9 cm2 and a mean radius of 16 cm. Calculate the magneto-motive force, if the flux produced is 1.7 µWb.
Question 6
With the initial values y(0)=y’(0)=1,the solution of the differential equation y’’+6y’+9y=6
at t=0 is
at t=0 is Question 7
A multi-range dc voltmeter is to be constructed by using individual multiplier resistors. A moving coil meter with internal resistance 80 Ω is to be used, which gives a full scale deflection with voltage 20 V. Determine the value of the multiplier resistors required, if the ranges of the voltmeter are 0 – 50 V, 0 – 100 V and 0 – 500 V.
Question 8
A SCR and inductance of 10mH are connected in series and power is supplied by a DC voltage source of 60V. If the latching current of SCR is 6mA, then find the minimum width of gate pulse required to turn on the SCR.
Question 9
A star connected synchronous motor at 100 kVA, 3-φ, 1400V, 23A, 60Hz, 126.5 rpm has an effective resistance of 0.5 ohm and a synchronous reactance of 10 ohm per phase. Determine internal power developed by the motor when it is operating at rated current and 0.5 power factor leading.
Question 10
A 50Hz, 4 pole 400 MVA, 25 KV turbo generator is supplying rated MVA at 0.85 pf lagging. when fault occurs electrical power output is reduced by 50%. Assuming constant input to the shaft and neglecting all the losses. What will be the accelerating torque in the generator _____?
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ESE & GATE EEGeneralNov 30ESE & GATE EE
