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Electric Circuits

Electric Circuits
The value of unity impulse function at time (t) = 0 is

 0.
 infinite.
 1.
 indeterminate.

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Electric Circuits
The internal resistance of a dry cell is of the order of

  0.2 to 0.4 Ohm.
  1 to 1.5 Ohm.
  1 to 15 Ohm.
  2 to 5 Ohm.

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Electric Circuits
Which quantity should be measured by the voltmeter ?

 Voltage
 Current
 Speed
 Power

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Electric Circuits
The resistivity of semi-conductors at room temperatures is

 1.6 × 106 to 100 × 106 ohm - cm.
 1000 to 1500 ohm - cm.
 0.01 to 50 ohm - cm.
 109 to 1012 ohm - cm.

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Electric Circuits
Which of following materials has the least resistivity ?

  Zinc.
  Copper.
  Mercury.
  Lead.

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Electric Circuits
A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the inductance.

 0.47 µF.
 6.37 µF.
 1.58 µF.
 2.25 µF.

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MORE MCQ ON Electric Circuits

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