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Electric Circuits

Electric Circuits
A rectangular magnet of magnetic moment M is cut into two pieces of same length. The magnetic moment of each piece will be

 2 M.
 M / 2.
 M / L.
 M.

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Electric Circuits
Can a 250 V, 5 A single way switch be used in place of a 250 V, 15 A Switch?

  Yes.
  No.
  Single way switch doesn operate at such current ratings.
  Single way switch doesn exist.

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Electric Circuits
Twelve 6 Ω resistor used as edge to form a cube. The resistance between two diagonally opposite corner of the cube is

 5 / 6 Ω.
 5 Ω.
 6 Ω.
 6 / 5 Ω.

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Electric Circuits
What is the real power in AC operation?

 None of these.
 VIcosφ.
 Both option A and B.
 Apperant power × cosφ.

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Electric Circuits
If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of

 frequency.
 reactive power.
 time.
 power.

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 15.
 75.
 60.
 105.

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MORE MCQ ON Electric Circuits

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