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Electric Circuits

Electric Circuits
Consider the following circuit. What is the value of i ?

 12 A.
 - 5 A.
 6 A.
  5 A.

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Electric Circuits
Electric field intensity ( E ) at any point in an electric field is equal to

 ( potential gradient )1/2.
 ( potential gradient )2.
 potential gradient.
 ( potential gradient )1/3.

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Electric Circuits
1 F is theoretically equal to

 1 ohm of resistance
 ratio of 1 C to 1 V
 none of these
 ratio of 1 V to 1 C

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Electric Circuits
The value of unity impulse function at time (t) = 0 is

 indeterminate.
 1.
 0.
 infinite.

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Electric Circuits
Zinc cadmium and lead coating is generally provided for

  corrosion.
  all of above.
  electrical contacts.
  decoration.

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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

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

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