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Electric Circuits

Electric Circuits
The resistance of 200 W, 200 V lamp is

 800 Ω.
 400 Ω.
  200 Ω.
 100 Ω.

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Electric Circuits
In question no.3, which of the following is true ?

 None of these.
 i(0+)= iL(0+).
 iL(0) = ic (0).
 ic (0+) = i(0+).

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Electric Circuits
Efficiency of electrical machines should be calculated by measuring

 losses and input.
 losses.
 output and input.
 losses and output.

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Electric Circuits
Which of the following quantities remain the same in all parts of a parallel circuit

 voltage.
 power.
 current.
 resistance.

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Electric Circuits
R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is

 111 ± 7.23 Ω.
  111 ± 0 Ω.
 111 ± 2.77 Ω.
  111 ± 5.55 Ω.

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Electric Circuits
A external resistance R is connected to a cell of internal resistance r, then the current is maximum when

None of these
 R = r.
 R < r.
 R > r.

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MORE MCQ ON Electric Circuits

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