IB Physics Sub-topic D2 Definitions

This page contains our IB Physics definitions for sub-topic D2. By learning each one of these definitions, you will fully cover the content for IB Physics 'Electromagnetic fields'.
Alternating current

It is current that constantly switches direction

Conductor

It is a material that allows the flow of charge

Current

It is the rate of flow of charge

Direct current

It is current that flows in one direction

Electric field

It is the force per unit positive point test charge

Electronvolt

It is the energy gained by an electron moving 1 V

Electrostatic force

It is the force between two electrically charged objects

Insulator

It is a material that does not allow the flow of charge

Neutral

It is the presence of equal amounts of positive and negative charge

Potential difference

It is the energy difference or work done per unit charge moved between two points

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