1(iii)
The graph plotted for potential difference (V) against current (I) for ohmic resistors is :
- (a)A curve passing through the origin.
- (b)A straight line not passing through origin.
- (c)A straight line passing through the origin.
- (d)A circle centred at the origin.
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A straight line passing through the origin.
Reason — The relation between potential difference (V) and current (I) is I ∝ V. So, it is an equation of a straight line passing through the origin.