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Electric Circuits

Electric Circuits
Which of the following has no units?

 Moment of a magnet
 Permeability
 Magnetic susceptibility
 Permittivity

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Electric Circuits
A capacitor in a circuit became hot and ultimately exploded due to wrong connection, which type of capacitor it could be?

 Any of above.
 Paper capacitor.
 Electrolytic capacitor.
 Ceramic capacitor.

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Electric Circuits
For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R.

 3 Ω.
 2 Ω.
 1 Ω.
 4 Ω.

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Electric Circuits
In the given figure, the Thevenins equivalent voltage and impedance as seen from the terminals P - Q is given by

 2 V and 7.5 Ω.
 4 V and 5 Ω.
 2 V and 5 Ω.
 4 V and 7.5 Ω.

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Steel.
 Aluminium.
 Stranded aluminium.
 Copper.

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Electric Circuits
Time constant of RC series circuit is

 L/R
 2L/R
 2RC
 RC

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MORE MCQ ON Electric Circuits

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