alleryStart learning →Which quantity is defined as the electric property that impedes current?
ACapacitance of the conductor
BResistance of the conductor
CConductance of the material
DPermittivity of the material
Answer & Solution
Correct answer: B. Resistance of the conductor
1. Voltage drives current, and something must oppose it or the current would be unlimited.
2. That opposing electric property is resistance, written R.
3. It arises because moving charges collide with atoms and molecules and give up energy to them.
4. Conductance is the reciprocal idea, so naming it inverts the definition asked for.
_Source: OpenStax College Physics (CC BY 4.0), Ch 20 "Electric Current, Resistance, and Ohm's Law", section Resistance and Simple Circuits_
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