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Electric Circuits

Electric Circuits
A 3Ω resistor having 2A current will dissipate the power of

 2 W.
 4 W.
 12 W.
 8 W.

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Electric Circuits
When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells

 mixed.
 in parallel.
 as in series.
 in either series or parallel.

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Electric Circuits
For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R.

 2 Ω.
 3 Ω.
 4 Ω.
 1 Ω.

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Electric Circuits
Galvanizing is the coating of

 zinc.
 brass.
 lead.
 chromium.

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Electric Circuits
Electric field intensity ( E ) at any point in an electric field is equal to

 ( potential gradient )2.
 ( potential gradient )1/2.
 potential gradient.
 ( potential gradient )1/3.

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Electric Circuits
An electrical circuit with 10 branches and 7 nodes will have

  4 loop equations.
  10 loop equations.
 3 loop equations.
 7 loop equations.

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MORE MCQ ON Electric Circuits

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