# The time constant for the given circuit will be

1.  1/9 s

2.  ¼ s

3.  4 s

4.   9 s

4

4 s

Explanation :
No Explanation available for this question

# The resonant frequency for the given circuit will be

4

Explanation :
No Explanation available for this question

# Assuming ideal elements in the circuit shown below, the voltage vab will be

1.  - 3V

2.  0 V

3.  3 V

4.  5 V

4

- 3V

Explanation :
No Explanation available for this question

# A capacitor consists of two metal plates each 500 x 500 mm2 and spaced 6 mm apart. The space between the metal plates is filled with a glass plate of 4 mm thickness and a layer of paper of 2 mm thickness. The relative permittivities of the glass and paper are 8 and 2 respectively. Neglecting the fringing effect, the capacitance will be (Given that E0 = 8.85 x 10-12 F/m)

1.  983.33 pF

2.  1475 pF

3.  6637.5 pF

4.  9956.25 pF

4

1475 pF

Explanation :
No Explanation available for this question

# A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross-sectional area of 300mm2. The inductance of the coil corresponding to a magnetizing current of 3A will be(Given that μ0 = 4????×10-7 H/m)

1.   37.68????H

2.   113.04????H

3.  37.68mH

4.  113.04mH

4

113.04????H

Explanation :
No Explanation available for this question

# In the circuit shown in the figure, the value of the current i will be given by

1.  0.31 A

2.  1.25 A

3.  1.25 A

4.   2.5 A

4

1.25 A

Explanation :
No Explanation available for this question

# Given a sequence x[n] to generate the sequence y[n] = x[3 - 4n],which one of the following procedures would be correct

1.  First delay x[n] by 3 sample to generate z1[n], then pick every 4th sample of z1[n] to generate z2[n], and then finally time reverse z2[n] to obtain y[n]

2.  First advance x[n] by 3 samples to generate z1[n], then pick every 4th sample of z1[n] to generate z2[n], and then finally time reverse z2] to obtain y[n]

3.  First pick every fourth sample of x[n] to generate v1[n], time-reverse v1[n] to obtain v2[n], and finally advance v2[n] by 3 sample to obtain y[n]

4.  First pick every fourth sample of x[n] to generate v1[n], time-reverse v1[n] to obtain v1[n], and finally delay v2[n] by 3 samples to obtain y[n]

4

First pick every fourth sample of x[n] to generate v1[n], time-reverse v1[n] to obtain v1[n], and finally delay v2[n] by 3 samples to obtain y[n]

Explanation :
No Explanation available for this question

# A system with input x(t) and output y(t) is defined by the input-output relation.The system will be

1.  causal, time-invariant and unstable

2.  causal, time-variant and unstable

3.  non-causal, time-invariant and unstable

4.  non-causal, time-variant and unstable

4

non-causal, time-variant and unstable

Explanation :
No Explanation available for this question

# A signal x(t) = sinc (αt) whore α is a real constant is the input to a Linear Time invariant system whose impulse response h(t) = sinc (βt) where β is a real constant. If min (α, β) denotes the minimum of α and β, and similarly max (α, β) denotes the maximum of α and β, and K is a constant, which one of the following statements is true about the output of the system

1.  It will be of the form K sin (γt) where γ = min (α, β)

2.  It will be of the form K sinc (γt) where γ = max (α, β)

3.   It will be of the form K sinc (αt)

4.  It cannot be a since type of signal

4

It will be of the form K sin (γt) where γ = min (α, β)

Explanation :
No Explanation available for this question

1.  T/8

2.  T/4

3.  T/2

4.  T/2

4