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Electric Circuits

Electric Circuits
Which of the following is the heaviest?

 Proton.
 Electron.
 Molecule.
 Atom.

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Electric Circuits
What is the value of charge of an electron?

 1.6022 × 10-7 Coulomb
 1.6022 × 10-27 Coulomb
 1.6022 × 10-8 Coulomb
 1.6022 × 10-19 Coulomb

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Electric Circuits
A capacitor is charged by a constant 10 mA current sources which is turned on for 1 second. Assuming the capacitor is initially charge free; determine the charge delivered to and the power supplied by the source if the capacitor has a value of 1 mF.

 0.1C, 100MW.
 0.1C, 10MW.
 0.01C, 10MW.
 0.01C and 5W.

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Electric Circuits
Kirchhoff’s voltage law is used for

 loop analysis.
 finding equivalent resistance.
 nodal analysis.
 representing a current source.

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Electric Circuits
The number of electrons in the outer most orbits of carbon atom is

 3.
 4.
 7.
 6.

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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 L is

 45.5 V.
 50.5 V.
  39.1 V.
  31.9 V.

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