The unit of resistivity is
AΩ – metre.
BΩ / m².
CΩ.
Correct answer
A. Ω – metre.
Explanation
The correct answer is Ω – metre..
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Study 121 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
A. Ω – metre.
Explanation
The correct answer is Ω – metre..
Correct answer
A. 8R Ω
Explanation
As per law of resistance, the resistance of the conductor is inversely proportional to its cross-sectional area i.e. it is inversely proportional to the square of the diameter of cross-sectional area of the conductor. As per same law of resistance, the resistance of the conductor is directly proportional to the length of the conductor.
Correct answer
B. 12 watts
Explanation
The correct answer is 12 watts.
Correct answer
A. Voltage
Explanation
Voltmeter is a high resistance device used for measuring potential difference or voltage. It must be connected in parallel for measurement
Correct answer
C. the highest resistance has the highest voltage drop
Explanation
The correct answer is the highest resistance has the highest voltage drop.
Correct answer
C. 60 W
Explanation
The correct answer is 60 W.
Correct answer
D. product of its inductance and rate of change of current through it.
Explanation
The instantaneous voltage across the inductor is expressed as the product of inductance and a rate of change of current through it as it doesn’t allow any certain change of current through it. Voltage induced in an inductor is written as
Correct answer
D. has higher wattage rating
Explanation
The correct answer is has higher wattage rating.
Correct answer
A. the other two bulbs will light
Explanation
The correct answer is the other two bulbs will light.
Correct answer
B. Lorentz method
Explanation
The correct answer is Lorentz method.