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Electric Circuits

Electric Circuits
Container of a lead acid battery

 ceramics.
 molded hard rubber.
 any of above.
 celluloid.

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Electric Circuits
Find the total power absorbed by the resistor in the given circuit.

  6 W.
 12 W.
 24 W.
 30 W.

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

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

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 60.
 15.
 105.
 75.

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Electric Circuits
What is the SI unit of electric current ?

 Ampere.
None of these
 Ohm.
 Faraday.

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Electric Circuits
Two resistors R1 and R2 give combined resistance of 4.5 Ohm when connected in series and 1 Ohm when in parallel, the resistances are

 2.2 Ohm and 2.3 Ohm.
 1.5 Ohm and 3 Ohm.
 2 Ohm and 2.5 Ohm.
 1.25 Ohm and 3.25 Ohm.

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MORE MCQ ON Electric Circuits

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