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BARC 2018 EC: Solution for Live Quiz Session (21 March)

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Question 1

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

Question 2

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 3

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 4

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 5

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

Question 6

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 7

A plane wave is incident normally from air onto dielectric

. If the electric field of transmitted wave is –4 times the electric field of the reflected wave, the value of ε_r of dielectric is

Question 8

Given below is a block diagram of an electric circuit.

The transfer function for the given system is obtained as:

Determine the value of

Question 9

Constant K type HPF (high pass filter) having cut off frequency 12 KHz and nominal impedance R_o = 500 Ω Find shunt arm inductor L and series arm capacitance C for T and π section of HPF?

Question 10

Which of the following statements is/are correct?
In INTEL 8085 the interrupt enable flip-flop can be reset by
(i) DI instruction
(ii) System RESET
(iii) Interrupt acknowledgment
(iv) SIM instruction

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ESE & GATE EC General

Jun 30ESE & GATE EC