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Electric Circuits

Electric Circuits
In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

 2A
 0A
 5A
 10A

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Electric Circuits
How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?

 60
 1200
 10
 600

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Electric Circuits
The mass of a neutron of atom is

 1.609 × 10 - 31 Kg.
 1.672 × 10 - 26 Kg.
 1.602 × 10 - 19 Kg.
 1.675 × 10 - 27 Kg.

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Electric Circuits
One ampere hour charge is equivalent to

 36 coulombs.
 3600 coulombs.
 360 coulombs.
 36000 coulombs.

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Electric Circuits
Current efficiency in electroplating is usually

  90 to 98 %.
  99 %.
  70 to 80 %.
  50 to 60 %.

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Electric Circuits
The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be

  40 Ω.
 800 Ω.
 400 Ω.
 4 Ω.

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