This document defines basic electrical quantities including electricity, coulomb, current, voltage, resistance, ampere, and watt. It defines a coulomb as the unit of electric charge, equal to approximately 6.24 billion billion electrons. Current is defined as the continuous movement of electrons through a conductor, measured in amperes. Voltage is the electric pressure or potential difference between two points, measured in volts. Resistance is the opposition to electron flow, measured in ohms. It also presents Ohm's law and defines power as the rate of electric energy conversion, measured in watts.

1. BASIC ELECTRICAL
QUANTITIES
Presented by: El Niña Jude Buscato

2. OBJECTIVES
 To understand the basic terminology of
electricity
 Define a Electricity
 Define a Coulomb
 Define a Current
Define a Voltage
 Define an Resistance

3.  is the set of physical phenomena associated with
the presence and flow of electric charge.
ELECTRICITY

4. Coulomb is a measurement for a quantity of
electrons, and the practical unit for an electric
charge .
One Coulomb =
6,240,000,000,000,000,000 electrons
Coulomb

5. Coulomb
 Coulomb's law is a law of physics describing the
electrostatic interaction between electrically charged
particles.
 It was first published in 1785 by French physicist
Charles Augustin de Coulomb and was essential to
the development of the theory of magnetism.

6. Coulomb
Charles Augustin
de Coulomb
He liked to be called
“Chuck” and to his friends,
“Chucky C”

7. Current (I)
 continuous
movement of
electrons through a
conductor
 it is measured in
Amperes (A)
Ampere (A)
 The term ampere
refers to the number
of electrons passing to
a given point
in 1 second.
1 C = 1 A × 1 s
Electrical Quantities

8. The impulse of electricity can appear to
be faster than the speed of light
When a ball (electron) is pushed
at one end, another ball
(electron) at the other end is
forced out.
Ampere
Ammeter – an instrument used to measure current
flow in a circuit.

9. The Voltage (V, EMF or E)
 is electric pressure, a potential force or
difference in electric charge between two points.
 is measured in Volts.
Voltmeter – an instrument
used to measure voltage or
potential energy difference of
load or source.

10. The Resistance (R)
 is the opposition to the flow of electrons or
current.
 is measured in Ohms Ω
 Voltmeter – an instrument
used to measure voltage or
potential energy difference of
load or source.
 Ohmmeter is used to
measure resistance.

11. Ohm’s Law
E = Volts
I = Amps
R = Resistance
(Ohms Ω )

12. POWER
 is the amount of electric energy converted to
another form of energy in a given length
of time.
 measured in Watts (W)
P = Voltage x Current
Wattmeter – an instrument used to measure power.

13. Can humans create electricity?Can humans create electricity?

14. Electrical Systems
How many watts
• 81 watts sleeping.
• 128 standing at ease.
• 163 walking.
• 407 briskly walking
•1,048 long-distance runner.
•1,630 from a sprinter.

15.  Electrical charges jump from one cell to another
in lieu of wires until they reach their
destination.
According to the Center for Space Power and
Advanced Electronics, the human body is capable
of producing 11,000 watt hours.
Electrical Systems

16. 1. What is the practical unit of electric charge?
2. The continuous movement of electrons through a
conductor.
3. Who was the French physicist essential to the
development of the theory of magnetism?
4. Is a field of engineering that generally deals with
the study and application of electricity, electronics
and electromagnetism.
5. Is the set of physical phenomena associated with
the presence and flow of electric charge.
Questions:

17. 6. Is credited w/ establishing the term “electricity” and
probably the 1st
electrical engineer who designed the
“VERSORIUM”.
7. What is SI unit of Current, Resistance and Voltage?
8. What is the instrument used to measure current
flow in a circuit?
9. What is the instrument used to measure voltage or
potential energy difference of load or source.
10. Is the amount of electric energy converted to
another form of energy in a given length
of time.
Questions: