11-04-2012, 04:17 PM
Basic Electronics
Basic Electronics presentation v2_5_2.ppt (Size: 1.1 MB / Downloads: 202)
Things to be covered:
What is electricity
Voltage, Current, Resistance
Ohm’s Law
Capacitors, Inductors
Semiconductors
Mechanical Components
Digital Electronics
What is Electricity
Everything is made of atoms
There are 118 elements, an atom is a single part of an element
Atom consists of electrons, protons, and neutrons
Electrons (- charge) are attracted to protons (+ charge), this holds the atom together
Some materials have strong attraction and refuse to loss electrons, these are called insulators (air, glass, rubber, most plastics)
Some materials have weak attractions and allow electrons to be lost, these are called conductors (copper, silver, gold, aluminum)
Electrons can be made to move from one atom to another, this is called a current of electricity.
Voltage
A battery positive terminal (+) and a negative terminal (-). The difference in charge between each terminal is the potential energy the battery can provide. This is labeled in units of volts.
Resistance
All materials have a resistance that is dependent on cross-sectional area, material type and temperature.
A resistor dissipates power in the form of heat
Basic Electronics presentation v2_5_2.ppt (Size: 1.1 MB / Downloads: 202)
Things to be covered:
What is electricity
Voltage, Current, Resistance
Ohm’s Law
Capacitors, Inductors
Semiconductors
Mechanical Components
Digital Electronics
What is Electricity
Everything is made of atoms
There are 118 elements, an atom is a single part of an element
Atom consists of electrons, protons, and neutrons
Electrons (- charge) are attracted to protons (+ charge), this holds the atom together
Some materials have strong attraction and refuse to loss electrons, these are called insulators (air, glass, rubber, most plastics)
Some materials have weak attractions and allow electrons to be lost, these are called conductors (copper, silver, gold, aluminum)
Electrons can be made to move from one atom to another, this is called a current of electricity.
Voltage
A battery positive terminal (+) and a negative terminal (-). The difference in charge between each terminal is the potential energy the battery can provide. This is labeled in units of volts.
Resistance
All materials have a resistance that is dependent on cross-sectional area, material type and temperature.
A resistor dissipates power in the form of heat