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Electric Circuits

Electric Circuits
The capacity of a cell is measured in

  watt-hours.
  watts.
  ampere-hour.
  amperes.

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Electric Circuits
Three resistances of two ohms each are connected in star. In the equivalent delta representation each resistance will have a value of _______________ Ω.

 3.4.
 6.
 5.2.
 0.6.

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Electric Circuits
If a resistor and a capacitor are connected to form series R - C circuit across a voltage source. If frequency of voltage source increases

 the current decreases.
 the current increases.
 the current decreases abruptly.
 the current remain unaltered.

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 0.5R.
 2R.
 R.
 4R.

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Electric Circuits
Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is

 6:3:2.
 2:3:6.
 2:4:6.
 6:4:2.

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Electric Circuits
Condition of symmetry in Z-parameter representation is

 Z11 = Z12.
 Z11 = Z22.
 Z12 = Z22.
 Z12 = Z21.

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MORE MCQ ON Electric Circuits

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