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Electric Circuits

Electric Circuits
A coil with negligible resistance has 50 V across it with 10 mA. The inductive reactance is

 50 ohms.
 5000 ohms.
 1000 ohms.
 500 ohms.

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Electric Circuits
The rms value of sine wave is 100 A. Its peak value is

 282.8 A.
 141.4 A.
 150 A.
 70.7 A.

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Electric Circuits
A parallel plate capacitor has a capacitance of C farad. It area of the plates is doubled and the distance between them is half, the capacitance of the capacitor is

 16C Farad.
 C Farad.
 2C Farad.
 4C Farad.

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Electric Circuits
Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ?

 50 V.
  none of above.
  - 50 V.
  30 V.

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Electric Circuits
Time constant is the time taken for response to rise -------of maximum value?

 100%
 68.3%
 63.2%
 90%

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Electric Circuits
Internal resistance of ideal voltage source is

 infinite
 finite
 zero
 100 ohms

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MORE MCQ ON Electric Circuits

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