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Electric Circuits

Electric Circuits
A current of 1 mA flows through a 1M ohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

None of these
 1 W.
 0.5 W.
 2 W.

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Electric Circuits
Poorest conductor of electricity is

  Carbon.
  Silver.
  Aluminium.
  Steel.

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Electric Circuits
The fixed circular paths around the nucleus are called

 nucleus.
 orbitals.
 mesons.
 orbits.

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

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

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Electric Circuits
The electrical resistance of human body is around

  250 ohms.
  5 ohms.
  25 ohms.
  1000 ohms.

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Electric Circuits
The Norton equivalent of a network is given as IN = 4A and RN = 2 Ohm. When this circuit is connected across a 2 Ohm load, the current through the load is

 4 A.
 2 A.
 1 A.
 0 A.

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MORE MCQ ON Electric Circuits

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