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Electric Circuits

Electric Circuits
Which of the following is not a bilateral element?

 Resistor.
 Diode.
 Inductor.
 Capacitor.

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Electric Circuits
The time required for a pulse to change from 10 % to 90 % of its maximum value is known as

 run time.
 decay time.
 rise time.
 fall time.

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Electric Circuits
The value of E within the field due to a point charge can be found with help of

 Lenzs law.
 Faradays law.
 Coulombs law.
 Kirchhoffs law.

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Electric Circuits
A positive and a negative charged conductor are initially 50 mm apart. When they are moved close together so that they are now only 10 mm apart, the force between them will be

 10 times greater than before.
 5 times smaller than before.
 5 times greater than before.
 25 times larger than before.

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Electric Circuits
Two equal resistors R connected in series across a voltage source V dissipate power P. What would be the power dissipated in the same resistors when they are connected in parallel across the same voltage source?

 16P.
 2P.
  P.
 4P.

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Electric Circuits
The plates of lead acid storage battery are most likely to be short circuited if

 the electrolyte evaporates.
 the battery charged too slowly.
 sediment collect at the bottom of the battery.
 too much water is added.

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