List of top Electronics and Communication Engineering Questions

The Ebers-Moll model is applicable to ________.

The circuit shown in figure is

In JFET, drain current is primarily controlled by ________.
On a transmission line with standing wave the distance between a voltage maximum and adjacent current maximum is ________.
The ratio of the power radiated by an antenna to the total input power to the antenna is termed ________.
The number of propagating modes through an air filled rectangular waveguide of dimensions, \( a = 5 \text{ cm} \) and \( b = 2.5 \text{ cm} \) at 8 GHz frequency is ________.
The units of magnetic permeability and magnetic flux density respectively are ________.
For a 4-point sequence {0, 1, 2, 3}, FFT is ________.
The difference between the minimum output voltage during logic high and the minimum input level during logic high of a logic family is referred to as ________.
Two functions F1 and F2 to be implemented using a suitable size PLA are given as F1 = ∑m(0, 1, 2, 4) and F2 = ∑m(0, 5, 6, 7). Minimum number of product terms necessary is ________.

In the signal flow graph of given figure, \( \frac{y}{x} \) equals ________.

What will be the stability for the following transfer function?
\( G(s) = \frac{50}{s(s+5)} \)

For the circuit shown in the figure, the delay of the bubbled NAND gate is 5 ns and that of the counter is assumed to be zero. If the clock (Clk) frequency is 12 MHz, then the counter behaves as a ________.

The circuit shown in the figure can be used as a ________.

If diode cut-in voltage is 0.6 V. The diode status are

In the Op-Amp circuit, what is the load current \( I_L \)?

The MOSFET circuit implements the function.

For handling multiple input, multiple output system _______ is used.
Find the Fourier transform of the given signal \(x(t) = e^{-t}u(t - 2)\)
The energy of a signal \(A\delta[n]\) is _______.
Determine the continuous time convolution integral and choose correct option for:
\(y(t) = [u(t) - u(t - 2)] * u(t)\)
The active region of the output characteristics for a common base transistor is that in which _______.

Switch \(S_1\) is closed at time \(t = 0\) in the network shown. The expression for the voltage across capacitor \(C\) is _______.

A bulb in a staircase has two switches, one at the ground floor and one at the first floor. The bulb can be turned ON or OFF by either switch, regardless of the other switch’s state. The logic of this switching resembles _______.