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Electric Circuits

Electric Circuits
The thevnin equivalent of the circuit shown in the figure is

 1.5V, 1.5 Ohm
 0.75 V, 1.5 Ohm
 1.5V, 5/6 Ohm
 0.75V, 5/6 Ohm

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Electric Circuits
When power factor angle is varying, the shape of the current locus is

 Semicircle
 Circle
 Straight line
 Triangle

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Electric Circuits
Consider the following circuit. What is the value of current I in the 5 Ω resistor in the circuit given in the figure?

 3 A.
 0 A.
 4 A.
 2 A.

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Electric Circuits
The resistivity of semi-conductors at room temperatures is

 109 to 1012 ohm - cm.
 0.01 to 50 ohm - cm.
 1.6 × 106 to 100 × 106 ohm - cm.
 1000 to 1500 ohm - cm.

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Electric Circuits
Five cells are connected in series in a row and then four such rows are connected in parallel to Feed the current to a resistive load of 1.25Ω. Each cell has an emf of 1.5 V with internal resistance Of 0.2Ω. The current through the load will be

 5 A
 1 A
 23.33 A
 3.33 A

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Electric Circuits
Open circuit voltage of a fully charged lead acid cell is

 1.9 V.
 2.5 V.
 2.7 V.
 2 V.

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MORE MCQ ON Electric Circuits

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