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Electric Circuits

Electric Circuits
The electrical resistance of human body is around

  1000 ohms.
  250 ohms.
  5 ohms.
  25 ohms.

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Electric Circuits
Two wires of A and B of the same material and length ‘l’ and ‘2l’ have radius ‘r’ and ‘2r’ respectively. The ratio of their specific resistance will be

 1:2.
 4:1.
 1:8.
 1:1.

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Electric Circuits
The charge of an electron is

 - 1.675 × 10 - 27 Coulombs.
 - 9.109 × 10 - 31 Coulombs.
 - 1.602 × 10 - 19 Coulombs.
 - 1.672 × 10 - 27 Coulombs.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across R is

  30.6 V.
 40.8 V.
 24.4 V .
  50.8 V.

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Electric Circuits
In above question, determine the current if E = 100 V, R = 20Ω, R1 = 10 Ω and L = 2 H at 0.5 sec after short circuit.

 9.59.
 6.98.
 - 9.59.
 - 6.28.

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Electric Circuits
The voltage across R and L in a series RL circuit are found to be 200 V and 150 V respectively the rms value of the voltage across the series combination is ______ V.

 450
 360
 250
 200

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