1. The graph of current I ( on y-axis ) vs. potntial difference V ( on x- axis ) is found to be a straight line. The slope of the straight line gives :
a. potential difference
b. resistance
c. reciprocal of resistance
d. current
The graph of potential difference (V) versus current (I) for an ohmic resistor is a straight line as shown below:
The resistance of the resistor can be determined from this graph as: