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Electric Circuits

Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 5 W.
  64 W.
 1 W.
 10 W.

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Electric Circuits
If a resistor is connected across the voltage source and the frequency of voltage and current wave form is 50Hz, then what is frequency of instantaneous power

 0 Hz.
 100 Hz.
 50 Hz.
 150 Hz.

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Electric Circuits
The common voltage across parallel branches with different voltage sources can be determined by the relation V = (V1 / R1 + V2 / R2 + V3 / R3) / (1 / R1 + 1 / R2 +1 / R3 .....) The statement is associated with which theorem?

 Superposition theorem.
 Thevenin’s theorem.
 Millman’s theorem.
 Norton’s theorem.

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Electric Circuits
A current in a circuit is given by, If the current flows through the 5 Ω resistor, find power dissipated at t = 0?

 10 Watts.
 20 Watts.
 15 Watts.
 40 Watts.

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Electric Circuits
Three resistors each R Ohm is connected to form a triangle. The equivalent resistance across any terminals is

 R.
 3R/2.
 R/2.
 2R/3.

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Electric Circuits
Which of the following has no units?

 Magnetic susceptibility
 Permittivity
 Permeability
 Moment of a magnet

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MORE MCQ ON Electric Circuits

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