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Electric Circuits

Electric Circuits
The electron is lighter than a proton by a factor of about

 184.
 1840.
 18.4.
 18400.

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

 20 V.
 40 V.
 200 V.
 400 V.

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Electric Circuits
A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is

  5 A.
  8.85 A.
  zero.
  50 A.

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Electric Circuits
In which of the following networks it is not possible to find the transient free response?

 RLC
 RC
 RL, RC, and RLC
 RL

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Electric Circuits
What is called the frequency in AC operation?

 No. of (-) ve quadrature made per second.
 No. of wave made per second.
 No. of cycles made per second.
 No. of (+) ve quadrature made per second.

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Electric Circuits
What is the relation between time period T and frequency?

 T = 0.85 / frequency.
 T = 0.5 / frequency.
 T = frequency.
 T = 1 / frequency.

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