Physics Level 2 Electricity & Magnetism.

External Level 2 NCEA.

Charge of one electron

-1.6×10^-19

Mass of one electron

9.11×10^-31

Electric Feild (define)

an invisible force created by the attraction and repulsion of electrical charges (the cause of electric flow)

Electric Feild (E) - unit)

V/m^-1 Volts per meter

In a uniform Electric Feild..

Everything experience the same force

what is a Unit of charge (Q) measured in?

coulons - c.

E.g electron = -1.6×10^-10 c

Bigger charge =

Bigger attraction

What is the direction of Electrical currents

Postive - Negative

Stronger Electrical Feild =

Stronger attractive forces.

If a electrical felid increases in size

Strength of electric field decreases