Q.1

Switching voltage regulators have ______ than linear regulators.

  • longer life
  • simpler circuitry
  • greater efficiency
  • lower cost
Q.2

Current cannot flow to ground through a(n) ________.

  • mechanical ground
  • ac ground
  • virtual ground
  • virtual short
Q.3

If the two inputs to a differential amplifier are exactly the same, then the output is the signal multiplied by two.

  • True
  • False
Q.4

If the two inputs to a differential amplifier are exactly the same, then the output is the signal multiplied by two.

  • True
  • False
Q.5

A ______ is not a multivibrator.

  • one-shot
  • flip-flop
  • VCO
  • bistable
Q.6

mcq18_1012.gif

What value of input resistance is needed in the given circuit to produce the given output voltage?

  • 50 omega.gif
  • 4 komega.gif
  • 4.08 komega.gif
  • 5 komega.gif
Q.7

mcq18_1012.gif

Decreasing the gain in the given circuit could be achieved by

  • reducing the amplitude of the input voltage
  • increasing the value of the feedback resistor
  • increasing the value of the input resistor
  • removing the feedback resistor
Q.8

The ideal output impedance for an operational amplifier is 0 omega.gif.

  • True
  • False
Q.9

An oscillator whose frequency can be controlled by an input "control voltage" is called a(n) ______ .

  • PLL
  • Schmitt trigger
  • VCO
  • S-R latch
Q.10

The 555 timer can be connected to operate a(n) ___________.

  • astable multivibrator
  • bistable multivibrator
  • monostable multivibrator
  • astable multivibrator and a monostable multivibrator
Q.11

Current cannot flow to ground through a(n) ________.

  • mechanical ground
  • ac ground
  • virtual ground
  • virtual short
Q.12

fbq18_1010.gif

The voltage gain is ______ for the amplifier in the given circuit.

  • –4
  • –5
  • –6
  • –7
Q.13

fbq18_1010.gif

The voltage gain is ______ for the amplifier in the given circuit.

  • –4
  • –5
  • –6
  • –7
Q.14

If the two inputs to a differential amplifier are exactly the same, then the output is the signal multiplied by two.

  • True
  • False
Q.15

The 555 timer can be connected to operate a(n) ___________.

  • astable multivibrator
  • bistable multivibrator
  • monostable multivibrator
  • astable multivibrator and a monostable multivibrator
0 h : 0 m : 1 s