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Electric Circuits

Electric Circuits
Which property is used to oppose the flow of current ?

 Capacitance
 Inductance
 Poteintial difference
 Resistance

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Electric Circuits
In the circuit shown in the figure, the value of Vs is 0, when I = 4 A. The value of I, when Vs = 16 V, is

 8 A.
 10 A.
 6 A.
 12 A.

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Electric Circuits
For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is

 1.
 1/4.
 16.
 4.

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Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.316 A.
 0.1 A.
 1 A.
 0.01 A.

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Electric Circuits
Which of the following has positive temperature coefficient ?

  Paper.
  Rubber.
  Gold.
  Germanium.

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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

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

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