$A$ conductor behaves as a superconductor:

Which of the following circuits is correct for the verification of Ohm's law?

Which of the following graphs represents an ohmic resistor?

Which of the following circuit setups can be used to verify Ohm's law?

The $V-I$ graphs $A$ and $B$ are drawn for two voltameters. Identify each graph.

An electric wire is connected across a cell of $e.m.f.$ $E$. The current $I$ is measured by an ammeter of resistance $R$. According to Ohm's law,which of the following relations is correct?