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Electric Circuits

Electric Circuits
A 6 V lead acid battery has an internal resistance of 0.01 Ω. How much current will flow when the battery is short circuited?

 100 A.
 600 A.
 1 A.
 6 A.

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Electric Circuits
The term trickle charge is associated with

 lead acid battery.
 silver zinc battery.
 nickel iron battery.
 dry cell.

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Electric Circuits
Link in network theory refers to

  N - B - 1.
  B - N - 1.
  B - N + 1.
  N - 1.

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Electric Circuits
Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances?

  1.5 Ω and 3 Ω.
 3 Ω and 9 Ω.
 6 Ω and 9 Ω.
  3 Ω and 6 Ω.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 10.
 0.85.
 1.
 0.4.

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Electric Circuits
In a 3 - φ delta connection, two-wattmeter method is used to measure the power; if the two watt meters read 28.13 kW and 13.31 kW, the power factor of connection will be

 0.4.
 0.85.
 0.6.
 0.9.

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