Current Electricity MCQs | Page - 3
Dear candidates you will find MCQ questions of Current Electricity here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Copper wire of certain length and resistance is drawn out to three times its length without change in volume, the new resistance of wire becomes
β
Correct Answer: (C)
9 times
Q. Current velocity through a copper conductor is
β
Correct Answer: (C)
of the order of a few Λ.s/m
Q. Electric current passing through the circuit produces
β
Correct Answer: (C)
thermal effect
Q. For testing appliances, the wattage of test lamp should be
β
Correct Answer: (C)
high
Q. For which of the following βampere second' could be the unit?
β
Correct Answer: (B)
Charge
Q. Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 0.25 Q. If the same four wires are connected is series the effective resistance will be
β
Correct Answer: (D)
4 Q
Q. Heat in a conductor is produced on the passage of electric current due to
β
Correct Answer: (D)
resistance
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