BARC EE Quiz 9

Consider the circuits with ideal diodes as shown below:

For V_in < 0, the output voltage V_out is equal to

A system is described by the following state equation

X(t) = x(t) + u(t)
Take  C = [3 2]

The transfer function of the system is

The Boolean expression for the shaded region as shown in the figure is

The properties observed in carbon nano tubes are

1) High stiffness and strengths

2) Low densities

3) High electrical conductivity

4) Non ductile

Which of the above statements are correct?

In the measurement of a resistance R₁ by the voltmeter ammeter method. The resistance of ammeter is 0.01Ω and that of Voltmeter is 1500 Ω, if the current measured is 2A and the Voltage is 200V, so the true value of R is equal to

In a series R-L circuit, the value of resistance is equal to 50 Ω. If the input current lags the supply voltage by 60°, then the value of inductance for 50 Hz. AC supply is

Laplace transform of the signal x(t) is

If the ROC is Re[s] < –2, then the inverse Laplace transform of the signal x(s) is.

A single-phase dual converter is fed from 230 V, 50 Ω source. The load is R = 10 Ω and the current limiting reactor has L = 0.06 H. For α₁ = 120° the peak value of circulating current is

A shunt reactor is operating for 0.98 times of its rated voltage and 0.96 times of its rated frequency. The reactive power absorbed by reactor ________ MVAr, if rating of shunt reactor is 100 MVAr.