Basic Concept of Electricity MCQs
Practice free Basic Concept of Electricity multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 171 questions — no login required.
Question 19easy
Ampere is the current which, if main tamed in two straight parallel conductors of infinite length, of neglible circular cross-section, and placed 1 m apart in a vacuum, would produce between these conductors a force of
Question 21easy
A wire of length / and of circular cross section of radius r has a resistance of Rohms. Another wire of same material and of cross-sectional radius 2r will have the same resistance R if the length is
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Question 22easy
With the rise in temperature, the temperature coefficient of resistance
Question 23easy
The values of temperature coefficient of resistance of a given conductor are
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Question 25easy
The resistance of a parallel circuit consisting of two resistors is 12 Q. One of the resistance wires breaks and the effective resistance becomes 18 Q. The resistance of the broken wire is
Question 26easy
When one leg of a parallel circuit gets opened out, the current drawn from the supply will