BARC Full Syllabus Test 17

The output of filter is a

Consider the circuit shown in the figure below:

The diode D1 in the figure shown below can be replaced by a 0.7 V battery when it is forward biased by a voltage greater than or equal to 0.7V. If the current source a ramp function i.e. , then the output can be represented as.

For the system shown in Fig below, in order to reduce C₁ by 1%, the percentage reduction that has to be done on G for given input, is

For a logic function F(A, B, C) = Σm(1, 2, 4, 7), if we realize it by using a 4 ×1 MUX having select lines as B, C then the input at D₃, D₂, D₁, D₀ where D₀ is LSB, will be respectively?

A power amplifier delivers 50 W output at 50% efficiency. The ambient temperature is 25°C. If the maximum allowable junction temperature is 150°C, then the maximum thermal resistance θ_JC that can be tolerated is

The minimum step-size required for a Delta modulator operating at 32K samples/sec to track the signal [u(t) is unit function].

x(t) = 125t(u(t) – u(t – 1)) + (250 – 125t) (u(t – 1) – u(t – 2))

So that slope overload is avoided, would be ?

For a clocked sequential circuit. Shown in figure.

The output sequence for on input sequence of 101001 assuming initial state to be Q₁Q₀ = 0 0

An uniform plane wave that is propagating in a medium with , and peak electric field of 8V/m. Now, determine the peak magnetic field intensity.

Find I in the given circuit if β is very large. Assume transistors are identical.

An air line has a characteristic impedance of 70 and a phase constant of 3 rad/m at 100MHz. The inductance per meter and the capacitance per meter of the line is

The value of  at  is

The unit impulse response of a system is given as c(t) = -4e^-t + 6e^-2t. The step response of the same system for t≥0 is equal to :