Physics Electricity CBSE Board 2026 Medium
(a) State Ohm's law and justify that V – I graph for Ohm's law will always be a straight line passing through…
- (a)State Ohm's law and justify that V – I graph for Ohm's law will always be a straight line passing through the origin.
- (b)The figure shows V – I graphs for two identical wires A and B having the same length and area of cross-section, but made of different materials. Which of these wires will be more suitable for making the heating element of an electric heater and why ?
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