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Ohm's law gives the relationship between which set of quantities for a conductor at constant temperature?
APower, energy and time
BForce, distance and work
CCharge, mass and velocity
DCurrent, voltage and resistance
Answer & Solution
Correct answer: D. Current, voltage and resistance
1. Ohm's law states $V = IR$ at constant temperature.
2. It links potential difference (V), current (I) and resistance (R).
3. Power and energy belong to Joule's law, not Ohm's law, so that option is wrong.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 4 Electricity "Electricity", p.63_
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