Electricity and Magnetism

Class practical: a minute current in the base-emitter circuit is used to control a much larger current in the collector...

Practical Activity 14-16

Class praticals: determining resistance from measurements of potential difference (p.d.) and current.

Practical Activity 14-16

Demonstration: an approach to Ohm's law in a quick demonstration.

Practical Activity 14-16

Class practical: this experiment looks at the relationship between current and potential difference (p.d.) for a length of...

Practical Activity 14-16

Demonstration: solutions may show ohmic or non-ohmic characteristics.

Practical Activity 14-16

Class practical: investigating the changing resistance of a wire as it heats up.

Practical Activity 14-16

Demonstration: gases conduct electricity, but they have to be ionised first.

Practical Activity 14-16