P4 Revision Notes

Positive charge - protons

Negative charge - electrons

The negative change moves when friction occurs

Charged jumps can lead to sparks

These are dangerous in inflammable atmospheres:

• fuel stations
• grain silos

This can be prevented by earthing the system

Attaching the conductor to the ground to rid of the charges.

Power = voltage X current

Power is the unit of electricity

KWh = hours of use X Power in…