An Experiment to Investigate the Factors which Affect the Resistance in a Wire
An experiment to investigate the factors which affect Resistance in a wire
What is resistance?
A potential difference (V) applied across a wire of length (l), there is in the conductor, an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting increase in the average vibration kinetic energy is rise in temperature.
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