Resistance And Ohms Law Flashcards
1
Q
What is electric current?
A
The flow of charge
2
Q
Units for current
A
Amperes (A)
3
Q
Symbol for current
A
Capital i
4
Q
What is voltage?
A
Electric potential energy
-comes from the source
5
Q
Relationship between voltage and current
A
Current is directly related to voltage
Current will go up if voltage goes up
6
Q
Resistance
A
The property of any material that slows down the flow of electrons in a circuit and can react it to other forms of energy
7
Q
Ohm’s law
A
The mathematical relationship comparing voltage (V), current (I), and resistance (R)
8
Q
Formula to get voltage
A
Current x resistance
Amperes x ohm
9
Q
Formula to get current
A
Voltage
__________
Resistance
Volts
_______
Ohm
10
Q
Formula to get resistance
A
Voltage divided by current
Volts divided by amperes
