Question

What is the reciprocal of resistance of a material called? Give its unit.

(a) Conductance, ohm^-1

(b) Conductivity, ohm^-1 m^-1

(c) Conductance, ohm^-1 m^-1

(d) Conductivity, ohm^-1

The question was asked in my homework.

My question comes from Ohm’s Law in division Current Electricity of Physics – Class 12

Answer 1

The correct answer is (a) Conductance, ohm^-1

Easy explanation: The conductance of a material is the ease with which electric charges flow through it.

Conductance=\(\frac {1}{Resistance}\).

SI unit of conductance=\(\frac {1}{ohm}\)

=ohm^-1.