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BARC 2018 EE: Solution for Live Quiz Session (21 March)
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Question 1
For the given circuit, determine the value of the feedback resistor, if the output voltage is - 45 V.
The circuit components are given below:
V1 = 2.5 V, R1 = 100 kΩ
V2 = 4.2 V, R2 = 500 kΩ
V3 = 3.3 V, R3 = 1 MΩ
The circuit components are given below:
V1 = 2.5 V, R1 = 100 kΩ
V2 = 4.2 V, R2 = 500 kΩ
V3 = 3.3 V, R3 = 1 MΩ
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
Consider the following equations
x + y + w = 0
y + z = 0
x + y + z + w = 0
x + y + 2z = 0
The system of equations will be
x + y + w = 0
y + z = 0
x + y + z + w = 0
x + y + 2z = 0
The system of equations will be
Question 4
In a transformer core loss found 60 W at 30 Hz and 100 W at 40 Hz. Calculate the core loss at 50 Hz if all the losses being measured at same flux densities.
Question 5
An SCR has Vg-Ig characteristics given as Vg = 1.5 + 8 Ig. In a certain application, the gate voltage consists of rectangular pulses of 12 V and of duration 50 μs with duty cycle 0.2. The value of Rg series resistor in gate circuit to limit the peak power dissipation in the gate to 5 watts is
Question 6
The 4-bit ripple counter which is composed of flip-flops with a propagation delay of 25ns, would have the maximum counting speed of
Question 7
A long transmission line has R = 6 Ω, G = 240 mS L = 2 H and C = 80 mF is operating at 50 Hz, 400 kV. If this line is terminated with 5 Ω, the voltage across the load as ______ kV.
Question 8
For an ac circuit, if V(t) = 160 sin (ω t + 10°) and
i(t) = 5 sin(ωt - 20°); then reactive power absorbed by the circuit is?
Question 9
Considering zero initial conditions in the given network, determine the value of R and L, if the current in the circuit is given as,
Question 10
A 3-phase transposed transmission line has its conductors at the corners of an equilateral triangle with side 4m. The diameter of each conductor is 1.85 cm. The inductance of the line (in mH per phase per km) is
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ESE & GATE EEGeneralJun 30ESE & GATE EE
