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Electric Circuits

Electric Circuits
For the circuit shown in the given figure the current I is given by

 3 A.
 4 A.
 1 A.
 2 A.

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Electric Circuits
For closer tolerance which of the following capacitors is usually preferred?

 Mica capacitor.
 Ceramic disc capacitor.
 Paper capacitor.
 None of them.

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Electric Circuits
What is the unit of potential difference ?

 Ohm
 Volt
 Ampere
 Watt

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Electric Circuits
In a series R, L circuit, voltage across resistor and inductor are 3 V and 4 V respectively, then what is the applied voltage?

 5V
 3V
 4V
 7V

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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

  zero.
  5 A.
  8.85 A.
  50 A.

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Electric Circuits
If emf in a given circuit is given by e = 100 sinω0t, then maximum value of voltage and frequency will be

 50√2 V, 100 Hz.
 100√2 V, 100 Hz.
 100 V, 100 Hz.
 100 V, 50 Hz.

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MORE MCQ ON Electric Circuits

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