2. electrostatics
TRANSCRIPT
Study of static electricity, or the study of charges at rest.
atoms consist of neutrons (no charge), and
amounts of protons (p+) and electrons (e-)
Protons and neutrons
(known as ),
are found in the nucleus and electrons move in
around the nucleus.
{
Nucleons
be removed.
Electrons in the orbitals be removed when
.
{
All types of charges are acquired through
This happens when two things are rubbed
together and are
Positive charge forms due to Negative charge forms due to
of electronsof
electrons
Like charges repel Unlike charges attract
The attraction between a charged
object and an uncharged object.
+ + ++ + ++ + ++ + ++ + ++ + ++ + +
- - -- - -- - -- - -- - -- - -- - -
Polarisation of insulators
Polarisation of insulators
Charge cannot be created or
destroyed, only transferredfrom one object to another.
The nett charge on an isolated system (charge can’t go anywhere)
stays constant during any physical process.
ChargeUnit: Symbol:
Ccoulomb
Q
Charge on each of two identical size conductors
𝑄 =𝑄1 + 𝑄2
2
Quantization of charge
Q = n·qe
An object has an electrical charge that is an integer multiple of he elementary charge (electron charge: -1,6 x 10-19 C).
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