educational

1. Electricity
DONE BY
KAUSHIK(LEADER),ARPITH,JOHAN,ABEL,SARIM,
CHRIS.J,AARON.M AND DAREEN

2. WHAT IS AN ELECTRICITY ?
• Electricity is the set of physical phenomena associated with the
presence and motion of electric charge. Although initially
considered a phenomenon separate from magnetism, since the
development of Maxwell's equations, both are recognized as part of
a single phenomenon: electromagnetism. Various common
phenomena are related to electricity, including lightning, static
electricity, electric heating, electric discharges and many others.
• The presence of an electric charge, which can be either positive or
negative, produces an electric field. The movement of electric
charges is an electric current and produces a magnetic field.

3. PICTURES OF ELECTRICITY

4. WHO INVENTED ELECTRICITY
• Benjamin Franklin
• Benjamin Franklin FRS FRSE (January 17, 1706 [O.S. January 6,
1705][1] – April 17, 1790) was an American polymath and one of
the Founding Fathers of the United States. Franklin was a leading
author, printer, political theorist, politician, freemason, postmaster,
scientist, inventor, humorist, civic activist, statesman, and diplomat.

5. ELECTRCITY SYMBOLS

6. ELECTRIC CIRCUT
• An electric circuit is a path in
which electrons from a
voltage or current source
flow. The point where those
electrons enter an
electrical circuit is called the
"source" of electrons. The
point where the electrons
leave an electrical circuit is
called the "return" or "earth
ground".

7. HOW DO ELECTRICITY FLOW
• An electric current is a flow of electric
charge. In electric circuits this charge is
often carried by moving electrons in
a wire. It can also be carried by ions in an
electrolyte, or by both ions and electrons
such as in an ionised gas (plasma).

8. how to measure circuit
• The SI unit for measuring an electric current is the ampere,
which is the flow of electric charge across a surface at the
rate of one coulomb per second.
Electriccurrent is measured using a device called an
ammeter.
AMMETRE

9. SWITCHES
• In electrical engineering, a switch is an electrical component that
can "make" or "break" an electrical circuit, interrupting
the current or diverting it from one conductor to another.[1][2] The
mechanism of a switch removes or restores the conducting path in
a circuit when it is operated. It may be operated manually, for
example, a light switch or a keyboard button, may be operated by a
moving object such as a door, or may be operated by some sensing
element for pressure, temperature or flow.

10. VOLTAGE
• Voltage, electric potential difference, electric pressure or electric
tension (formally denoted ∆V or ∆U, but more often simply
as Vor U, for instance in the context of Ohm's or Kirchhoff's circuit
laws) is the difference in electric potential between two points. The
voltage between two points is equal to the work done per unit of
charge against a static electric field to move a test charge between
two points. This is measured in units of volts (a joule per coulomb);
moving 1 coulomb of charge across 1 volt of electric potential
requires 1 joule of work.

11. HOW TO MEASURE VOLTAGE
• Some types of voltmeter have a pointer on a dial, but most have a
digital readout. To measure the voltage across a component in a
circuit, you must connect the voltmeter in parallel with it. You
can measure the voltage across a cell or battery. The more cells,
the bigger the voltage.

12. WHAT WE LEAENED
• WHAT IS AN ELECTRICITY ?
• WHO INVENTED ELECTRICITY
• ELECTRCITY SYMBOLS
• ELECTRIC CIRCUIT
• HOW DO ELECTRICITY FLOW
• how to measure circuit
• SWITCHES
• VOLTAGE
• HOW TO MEASURE VOLTAGE