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Electric Circuits

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

 18400.
 1840.
 184.
 18.4.

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Electric Circuits
Average power taken by the pure capacitor is

 Maximum
 Minimum
 Zero
 Any of the above

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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

  50 A.
  8.85 A.
  5 A.
  zero.

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Electric Circuits
What is a resistor?

 Hello
 Inductor
 Capacitor
 Test

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Electric Circuits
Coating generally recommended for hard surfacing is

 lead plating.
 copper plating.
 chromium plating.
None of these

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Electric Circuits
Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system?

 BYR.
 RYB.
 RBY.
 YBR.

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MORE MCQ ON Electric Circuits

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