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Electric Circuits

Electric Circuits
One ampere hour charge is equivalent to

 3600 coulombs.
 36000 coulombs.
 360 coulombs.
 36 coulombs.

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Electric Circuits
A 35 V source is connected to a series circuit of 600 Ω and R as shown. If a voltmeter of internal resistance 1.2 kΩ is connected across 600 Ω resistor, it reads 5 V. The value of R is

 7.2 k Ω.
 3.6 k Ω.
 1.2 k Ω.
 2.4 k Ω.

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Electric Circuits
A capacitor that stores charge of 0.5 C at 10 V has a capacitance of _____________ farad.

 0.05.
 5.
 20.
 10.

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Electric Circuits
A ceramic and a mica capacitor have the same physical dimension. Which has the higher value of capacitance?

 Mica capacitor.
 Ceramic capacitor.
  It is impossible to conclude on the basis of information supplied.
 Both have identical value of capacitor.

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Electric Circuits
A 3Ω resistor having 2A current will dissipate the power of

 4 W.
 12 W.
 2 W.
 8 W.

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Electric Circuits
Which of the followings is the expression for energy stored in a capacitor?

 Cv.
 (1 / 2) Cv2.
 C dv / dt.
 C / v.

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