# The differential equation 100d2y/dt2-20dy/dt+y=x(t) describes a system with an input x(t) and an output y(t). The system, which is initially relaxed, is excited by a unit step input. The output y(t) can be represented by the waveform

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# For the transfer function G(jw) = 5 + jw , the corresponding  Nyquist  plot for positive frequency has the form

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The trigonometric Fourier series of an even function does not have the

1.  dc term

2.  cosine terms

3.  sine terms

4.  odd harmonic terms

4

sine terms

Explanation :
No Explanation available for this question

# When the output Y in the circuit below is ‘1’, it implies that data has

1.  changed from 0 to 1

2.  changed from 1 to 0

3.  changed in either direction

4.  not changed

4

changed from 0 to 1

Explanation :
No Explanation available for this question

# The logic function implemented by the circuit below is (ground implies logic 0)

1.  F =ANDP,Q

2.   F=?OR ?P,Q

3.   F =?XNOR ?P,Q

4.   F =XOR ?P,Q?

4

F =XOR ?P,Q?

Explanation :
No Explanation available for this question

# The circuit below implements a filter between the input current ii and the output voltage vo. Assume that the opamp is ideal. The filter implemented is a

1.  low pass filter

2.  band pass filter

3.  band stop filter

4.  high pass filter

4

high pass filter

Explanation :
No Explanation available for this question

# A silicon PN junction is forward biased with a constant current at room temperature. When the temperature is increased by 10ºC, the forward bias voltage across the PN junction

1.  increases by 60mV

2.  decreases by 60mV

3.  increases by 25mV

4.  decreases by 25mV

4

decreases by 25mV

Explanation :
No Explanation available for this question

# In the circuit shown below, the Norton equivalent current in amperes with respect to the terminals P and Q is

1.  6.4-j4.8

2.  6.56-j7.87

3.  10+j0

4.  16 +j0

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6.4-j4.8

Explanation :
No Explanation available for this question

# In the circuit shown below, the value of RL such that the power transferred to RL is maximum is

1.  5Ω

2.  10Ω

3.  15Ω

4.  20Ω

4

15Ω

Explanation :
No Explanation available for this question

1.  0

2.  1/10

3.  4/5

4.  1

4