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Analog Electron...

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  • Question 1
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    The theoretical maximum efficiency of a bridge rectifier circuit is

  • Question 2
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    What is the primary reason a full-wave rectifier without a filter has a lower ripple factor compared to a half-wave rectifier?

  • Question 3
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    A half wave rectifier is used to supply 24 V DC to a resistive load of 500 Ω and the diode has a forward resistance of 50 Ω. What is the maximum value of the AC voltage required at the input?

  • Question 4
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    What is the value of inductance to be used in the inductor filter connected to a full-wave rectifier operation at 60 Hz to provide a DC output with 4% ripple for a 100 Ω load?

  • Question 5
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    Diodes are used to clip voltages in circuits because they act as

  • Question 6
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    When a capacitor is connected across the output terminals of a half or full-wave rectifier, the output voltage

  • Question 7
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    The equivalent DC output voltage of a full-wave rectifier is ____ the equivalent DC output voltage of a half-wave rectifier.

  • Question 8
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    In the question a circuit and a waveform for the input voltage is given. The diode in circuit has cutin voltage Vγ = 0. Choose the option for the waveform of output voltage vo :

  • Question 9
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    In the question a circuit and a waveform for the input voltage is given. The diode in circuit has cutin voltage Vγ = 0. Choose the option for the waveform of output voltage vo

  • Question 10
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    In the question a circuit and a waveform for the input voltage is given. The diode in circuit has cutin voltage Vγ = 0. Choose the option for the waveform of output voltage vo

  • Question 11
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    For the circuit in fig. P.3.1.5, let cutin voltage Vγ = 0.7 V. The plot of vo verses vi for -10 ≤ vi ≤10 V is:

  • Question 12
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    The circuit inside the box in fig. contains only resistor and diodes. The terminal voltage vo is connected to some point in the circuit inside the box. The largest and smallest possible value of vo most nearly to is respectively.

  • Question 13
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    In the voltage regulator circuit in fig. the maximum load current iL that can be drawn is:

  • Question 14
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    The Q-point for the Zener diode in fig. is:

  • Question 15
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    In the voltage regulator circuit in fig the power rating of Zener diode is 400 mW. The value of RL that will establish maximum power in Zener diode is:

  • Question 16
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    In the voltage regulator circuit in fig. the Zener diode current is to be limited to the range 5 ≤ iz ≤100 mA.

    The range of possible load current is:

  • Question 17
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    In the voltage regulator circuit in fig. the Zener diode current is to be limited to the range 5 ≤ iz ≤100 mA.

  • Question 18
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    The secondary transformer voltage of the rectifier circuit shown in fig. is vs = 60 sin 2π 60tV. Each diode has a cut in voltage of Vγ = 0.6 V. The ripple voltage is to be no more than Vrip = 2 V. The value of filter capacitor will be:

  • Question 19
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    The input to full-wave rectifier in fig. is vi = 120 sin2π60t V. The diode cutin voltage is 0.7 V. If the output voltage cannot drop below 100 V, the required value of the capacitor is:

  • Question 20
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    For the transistor in circuit shown in fig. β = 200. Determine the value of VC for given value of VB in question.

  • Question 21
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    In the circuit shown in the figure, the BJT has a current gain (β) of 50. For an emitter-base voltage VEB = 600 mV, the emitter-collector voltage VEC (in Volts) is _____Volts.

  • Question 22
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    For the transistor in circuit shown in fig. β = 200. Determine the value of IE and IC for given value of VB in question.

  • Question 23
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    For the n-channel enhancement MOSFET shown in figure, the threshold voltage Vth = 2 V. The drain current ID of the MOSFET is 4 mA when the drain resistance RD is 1 kΩ. If the value of RD is increased to 4 kΩ, drain current ID will become

  • Question 24
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    The transistor in circuit shown in fig. has β = 200. Determine the value of voltage Vo for given value of VBB.

  • Question 25
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    The transistor in circuit shown in fig. has β = 75. Determine the value of voltage Vo for given value of VBB.

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