Eletronics Flashcards
What is voltage
The force that makes electronics flow in a conductor is called voltage and it measured in volts
what is current
An electric current is a flow of electrons. When we measure current in a circuit we are measuring the number of electrons passing a given point in one second correct is measured in amps
What is resistance?
Resistance is a measure of how easisly electrons flow through a conductor, and it has measured in ohms
What is voltage is measured in?
Volts
What is current measured in?
Amps
What is resistance measured in?
Ohms
Symbol for voltage
V
Symbol for current
A
Symbol for resistance
Ω
What does mili mean
Thousandths
What does kilo mean
Thousands of
What does mega mean
Million
How is current measured
Measure is ammeter connected in series
How do you measure voltage?
Measured by connecting volt meters across the component
How do you measure resistance?
To accurately measure the resistance of a component removed from the circuit and measured, using a standard multimeter
What is an electrical conductor?
Materials that are suitable for carrying electrical current
What is an electrical insulator?
Material that prevent electrical flow
What is a semi conductive material?
It displays both conductive and insulating properties
Name, three conductors
Gold
Copper
Brass
Name three semi conductors
Silicone
Germanium
Name, three insulators
Rubber
Glass
Plastic
What does the input do
The input senses and reacts to specific changes
What does the process do
The control reacts to changes I. The input and then controls or changes the output
What does the output do
Output is switched on or off by the control part of the circuit
