Wiley Acing The Gate Electrical Engineering 1st. Edition by Debashis Chatterjee, J. S. Lather, Lalita Gupta | 9788126582358 | 8126582359

Basic Electrical

Wiley Acing The Gate Electrical Engineering

2224 SOLVED PROBLEMS

Question: 3.PE.S2.3

The Nyquist sampling interval for the signal sinc (700t) + sinc (500t) is (a) 1/350 s (b) π/350 s (c) 1/700 s (d) 1/700 s ...

Verified Answer:

(c)

\begin{aligned}x & =\sin c(700 t)+\...

Question: 2014.S3.31

A perfectly conducting metal plate is placed in x-y plane in a right handed coordinate system. A charge of +32πε0√ 2 Coulombs is placed at coordinate (0, 0, 2). ε0 is the permittivity of free space. Assume i, j, k to be unit vectors along x, y and z axes, respectively. At the coordinate ...

Verified Answer:

Since there is a conducting plane, we can assume t...

Question: 2016.S2.29

The value of the integral 2 ∫-∞^∞ (sin 2πt/πt) dt is equal to (a) 0 (b) 0.5 (c) 1 (d) 2 ...

Verified Answer:

We know that

\frac{\sin 2 \pi t}{\pi t}[/la...

Question: 2016.S2.21

For the network shown in the figure below, the frequency (in rad/s) at which the maximum phase lag occurs is, ________. ...

Verified Answer:

From the given circuit.

\frac{V_{ o }(s)}{V...

Question: 2016.S2.23

In the circuit shown below, the voltage and current sources are ideal. The voltage (Vout) across the current source, in volts, is (a) 0 (b) 5 (c) 10 (d) 20 ...

Verified Answer:

For the given circuit

\begin{aligned}V_{\te...

Question: 2016.S2.24

The graph associated with an electrical network has 7 branches and 5 nodes. The number of independent KCL equations and the number of independent KVL equations, respectively, are (a) 2 and 5 (b) 5 and 2 (c) 3 and 4 (d) 4 and 3 ...

Verified Answer:

Given that there are 7 branches and 5 nodes in the...

Question: 2016.S2.25

Two electrodes, whose cross-sectional view is shown in the figure below, are at the same potential. The maximum electric field will be at the point (a) A (b) B (c) C (d) D ...

Verified Answer:

From the given cross-sectional view of the electro...

Question: 2016.S2.26

The Boolean expression (a +b +c +d)+(b + c ) simplifies to (a) 1 (b) a,b (c) a, b (d) 0 ...

Verified Answer:

The given function

F=\overline{(a+\bar{b}+c...

Question: 2016.S2.27

For the circuit shown below, taking the op-amp as ideal, the output voltage Vout in terms of the input voltages V1, V2 and V3 is (a) 1.8V1+ 7.2V2− V3 (b) 2V1+ 8V2− 9V3 (c) 7.2V1+ 1.8V2−V3 (d) 8V1+ 2V2− 9V3 ...

Verified Answer:

For the given circuit, at the two nodes we have [l...

Question: 2016.S2.28

Let x1(t) ↔ X1(ω) and x2(t) ↔ X2(ω) be two signals whose Fourier transforms are as shown in the figure below. In the figure, h(t) = e^□2|t | denotes the impulse response. For the given system, the minimum sampling rate required to sample y(t), so that y(t) can be uniquely reconstructed from its ...

Verified Answer:

For the given system:

Y(j \omega)=\left[X_1...