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Electric Circuits

Electric Circuits
The electrical resistance of human body is around

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

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Electric Circuits
A capacitor passes a current of 12.6 mA when supplied with 20 V ac with a frequency of 1000 Hz. The capacitance will be

 0.001 μF.
 1 μF.
 0.01 μF.
 0.1 μF.

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit increase if frequency of voltage source increases?

 Z and I.
 VL and VR.
 VL and I.
 VL and Z.

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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.

 - 6.28.
 9.59.
 6.98.
 - 9.59.

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Electric Circuits
In which of the circuits power factor can be zero?

 resistive.
 both ‘a’ and ‘b’
 capacitive.
 inductive.

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Electric Circuits
A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the resistance.

 480 Ohms.
 1000 Ohms.
 500 Ohms.
 100 Ohms.

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