Slides in this set

Slide 1

Preview of page 1

Static electricity
Static electricity is when charge "build up" on an object and
doesn't move, e.g. rubbing a rod:…read more

Slide 2

Preview of page 2

Two different
Effects of static
rods will attract
each other if
they have
Two rods made
of the same
material will
repel each
other due to
having the
same charge:…read more

Slide 3

Preview of page 3

Use of static - Printers
Inkjet printers work by spraying charged drops of ink onto a page.
The droplets can be directed using two oppositely charged plates.
The voltage on these plates can be easily swapped or varied. The
inkjet cartridge can also moved across the page by the printer…read more

Slide 4

Preview of page 4

Dangers of static
During refuelling the fuel gains electrons from the pipe,
making the pipe positive and the fuel negative. The resulting
voltage may cause a spark ­ bad news!
Solution: Either earth the fuel tank with a copper rod or
connect the tanker to the plane by a copper conductor.…read more

Slide 5

Preview of page 5

Charge (Q)
As we said, electricity is when electrons move around a circuit
and carry energy with them. Each electron has a negative
CHARGE. Charge is measured in Coulombs (C). We can work
out how much charge flows in a circuit using the equation:
Charge = current x time
(in C) (in A) (in s)
I T…read more

Slide 6

Preview of page 6

Energy and charge
The amount of energy that flows in a circuit will depend on the
amount of charge carried by the electrons and the voltage
pushing the charge around:
Energy transferred = charge x voltage
(in J) (in C) (in V)
V Q…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Physics resources:

See all Physics resources »