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Electric Circuits

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

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

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (2 + j4) pu
 (4 + j2 ) pu
 (3 + j4) pu
 (4 + j3) pu

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Electric Circuits
A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be –

 0.
 F εr.
 εr/F.
 F.

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Electric Circuits
During electroplating the weight of substance deposited depends on

 atmospheric humidity.
 quantity of electricity.
 room temperature.
 shape of article.

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Electric Circuits
The value of supply voltage for 400 W, 4 Ω load is

 40 V.
 200 V.
 400 V.
 20 V.

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Electric Circuits
For symmetrical wave form average value of one full cycle is

 1.11
 1
 0
 2.22

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