# Damping factor and undamped natural frequency for the position control system is given by

1.  (a) 2√kJ, √kJ respectively

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Viewed from the terminal AB, the following circuit shown in the figure can be reduced to an equivalent circuit of a signal voltage source in series with a single resistor with following parameters.

1.  4 volt source in series with 10Ω resistor

2.  1 volt source in series with 2.4Ω resistor

3.  15 volt source in series with 2.4Ω resistor

4.  1 volt source in series with 10Ω resistor

4

1 volt source in series with 2.4Ω resistor

Explanation :
No Explanation available for this question

# In the derivate error compensation

1.   damping decreases and settling time decreases

2.  damping increases and settling time increases

3.   damping decreases and settling time increases

4.  damping increases and settling time decreases

4

damping increases and settling time decreases

Explanation :
No Explanation available for this question

# the effective inductance of the circuit across the terminal AB in the figure shown below, is

1.  9 H

2.  21 H

3.  11 H

4.  6 H

4

11 H

Explanation :
No Explanation available for this question

# A high Q-quartz crystal exhibits series resonance at the frequency and parallel resonance at .

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# For making an unstable system stable

1.   gain of the system should be increased

2.   gain of the system should be decreased

3.   the number of zero to the loop transfer functions should be increased

4.   the number of poles to the loop transfer function should be increased

4

gain of the system should be increased

Explanation :
No Explanation available for this question

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

1.  -3 e-2t + 4 e-t + 1

2.  -3 e-2t + 4 e-t + 1

3.  -3 e-2t – 4 e-t – 1

4.  3 e-2t + 4 e-t – 1

4

3 e-2t + 4 e-t – 1

Explanation :
No Explanation available for this question

# A differential amplifier is invariably used in the input stage of all OP-AMP’S. This is done basically to provide the OP-AMP’S with a very high

1.  CMRR

2.  bandwidth

3.  slew rate

4.  open-loop gain

4

CMRR

Explanation :
No Explanation available for this question

# A parallel plate capacitor with air dielectric is charged and disconnected from the supply. The force between the plates is F. if the capacitor is now immersed in a liquid dielectric of dielectric constant C, then the force between the plates will be

1.  ε2F

2.  ε F

3.  F

4.  F/ε

4

F/ε

Explanation :
No Explanation available for this question

# As compared to a full wave rectifier using two diodes, the four diode bridge rectifier has the dominant advantage of

1.  higher current carrying

2.  lower peak inverse requirement

3.  lower ripple factor

4.  higher efficiency

4