3.5 Electricity Flashcards
1
Q
What is electric current?
A
The rate of flow of charge
2
Q
What is the unit for current?
A
Amperes (A)
3
Q
What is the equation for current?
A
I = ∆Q/∆T
4
Q
What is potential difference?
A
work done per unit charge
5
Q
What is the unit for Potential difference?
A
Volts
6
Q
What is the equation for potential difference?
A
V = ∆W / ∆Q
7
Q
What is resistance? (2)
A
The ratio of the potential difference and the current
The opposition to voltage
8
Q
What is the unit for resistance?
A
Ohm (Ω)
9
Q
What is the equation for resistance?
A
R = V / I
