BTEC physics brief 4

Hope this helps

HideShow resource information
Preview of BTEC physics brief 4

First 156 words of the document:

Syed Afjal Ali 11T Science (BTEC) 28/04/12
How a battery produces electricity:
A battery cell produces electricity
by changing chemical energy into
electrical energy. Different conductors
or electrodes are changed from parts
of the chemical energy. The electrodes
are separated by a thick conducting
paste called the electrolyte. The
substances in the battery react
chemically with each other to produce
an electrical current. Therefore due to
chemical activity a positive charge
builds up at one electrode and this is
able to flow through a conductor such
as a wire to the other (negative)
How a dynamo produces electricity:
The coil of wires persistently moves
around, as they go through the
magnetic field they cross the field's
lines and gives the electrons a push.
This is acknowledged as an
electromagnetic induction.


No comments have yet been made

Similar Science resources:

See all Science resources »See all resources »