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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

 M / L.
 M / 2.
 2 M.
 M.

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Electric Circuits
The mass of a proton is

 1.602 × 10 - 19 Kg.
 1.675 × 10 - 27 Kg.
 1.609 × 10 - 31 Kg.
 1.672 × 10 - 27 Kg.

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Electric Circuits
Rms value is defined based on which of the following?

 Voltage
 Charge transfer
 Heating effect
 Current

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Electric Circuits
Total instantaneous power supplied by a 3 - φ AC supply to a balanced RL load is

 zero.
 constant.
 pulsating with non zero average.
 pulsating with zero average.

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Electric Circuits
When water is added to sulphuric acid

  water start boiling.
  lot of heat is generated.
  acid particles get separated.
  colour of acid changes.

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Steel.
 Stranded aluminium.
 Aluminium.
 Copper.

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MORE MCQ ON Electric Circuits

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