Select the best answer:
Ohm's law gives a relationship between current and potential difference. According to this law, at constant temperature, the current flowing through a conductor is directly proportional to the potential difference across its ends.
The ratio of potential difference applied between the ends of a conductor and the current flowing through it is a constant quantity called resistance. The following graph is obtained by a researcher while doing an experiment to study Ohm's law.
The I-V graph for four conductors A, B, C and D having resistances RA, RB, RC and RD respectively are shown in the graph.
The ratio of potential difference applied between the ends of a conductor and the current flowing through it is a constant quantity called resistance. The following graph is obtained by a researcher while doing an experiment to study Ohm's law.
The I-V graph for four conductors A, B, C and D having resistances RA, RB, RC and RD respectively are shown in the graph.
Which one of the following relations is true for these conductors?