Resistors

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Description

In this video, we’ll look at how the current through a component depends on the potential difference which is applied across it.  For some types of components, the current is proportional to the applied potential difference; we call these ohmic conductors.  For other components, the behaviour is more complicated.  This video ends with an overview of the practical activity for this part of the course.

Key Words

I-V characteristic, resistor, current-voltage characteristic, thermistor, LDR, current, practical activity, potential difference, PAG, Ohm's law, ohmic, ohmic conductor, wire, resistance, filament lamp, diode