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Electric Circuits

Electric Circuits
Fall time is the time required for a pulse to decrease from 90 to ________% if its maximum values

 15
 10
 20
 5

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Electric Circuits
If Vout = 1 V for 1 kHz input then what would be Vout for 10 kHz for same input ?

 None of these.
 0.01 V.
  1 V.
 0.1 V .

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Electric Circuits
Find the Z parameters of the circuit shown in figure.

 Z11 = 2; Z12 = 1; Z21 = 1; Z22 = 2
 Z11 = 3; Z12 = 3; Z21 = 3; Z22 = 3
 Z11 = 3; Z12 = 1; Z21 = 1; Z22 = 3
 Z11 = 1; Z12 = 1; Z21 = 1; Z22 = 1

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Electric Circuits
A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest?

 1000 Hz.
 1 Hz.
 100 Hz.
 10 Hz.

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Electric Circuits
In the circuit shown in the figure the voltage across the 2 Ω resistor is

 3 V.
 1 V.
 4 V.
 2 V.

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.866.
 0.577.
 1.
 0.5.

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MORE MCQ ON Electric Circuits

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