Electricity Basics Flashcards
1
Q
Current
A
The amount of charge in coulombs flowing past a point each second
2
Q
Potential Difference
A
the amount of energy transferred per coulomb of charge
3
Q
Voltage
A
is the same thing as potential difference
4
Q
Equation for resistance
A
R = V/I Resistance = potential difference / current
5
Q
Voltmeter
A
a component that measures the potential difference between two points
6
Q
Ammeter
A
a component that measures the current flowing through a point in a circuit
7
Q
Equation for current
A
I = Q/t Current = charge transferred / time
8
Q
Equation for Voltage / potential difference
A
V = E/Q Voltage = Energy transferred / total charge
9
Q
Ampreas
A
The unit for current
10
Q
Volts
A
The unit for Voltage / Potential difference
