Electricity - is an energy produced from the Voltaic cell- is composed of silver or copper Battery- A group of drycells connected
movement of electrons or charged particles in a and zinc plates, and a piece of paper together. They can be connected in series
substance. It is one of the most easily transmitted soaked in salt solution between the plates. or in parallel.
and converted forms of energy. It was invented by Italian physicist Dry cells are in a series when the positive
Alessandro Volta. terminal is connected to the negative
Kinds of Electricity terminal of another cell.
• Static Electricity is electricity at rest.
• Current electricity is electricity in motion.
Electrostatic discharge (ESD) is the sudden flow of
electricity between two objects because of contact.
One that causes electrostatic discharge is static
electricity.
Example: Lightning - a huge spark that occurs when
the clouds release electrons, which are caused by
static electricity. Dry cells can also be connected in parallel.
They are in parallel when all positive
Properties of Electricity terminals are connected to a conductor and
• Electrical potential difference Electrolyte is a an electrical device, and all negative
often refers as Voltage. substance that terminals are connected in the same way.
a situation wherein electric currents are dissociates into ions in
induced when a continuous supply of a solution.
electrons moves from one point in the Wet cell- contains
electric field to another point where there chemicals that
is a reduced supply of electrons. conduct current
Voltage may be produced from a direct electricity by forming
current source like dry cells, wet cells, ions through a strong
dynamos, and generators. electrical field in a
Alternating current (AC) outlets in liquid medium.
households and office wirings are another Dry cell- a modern
possible source of current. form of the voltaic cell. It consist of a
The amount of voltage is measured using a positive terminal and a negative terminal.
Voltmeter and usually expressed in volts (V)
or joules per coulomb (J/C).
