Relationship Between Current and Potential Difference
- The relationship between the current passing through 2 points in a conductor and the potential difference between the 2 points is given by Ohm’s law.
- Ohm’s Law states that the current flowing in the metallic conductor is directly proportional to the potential difference applied across it’s ends, provided that the physical conditions ( such as temperature ) are constant. IαV or V=kIwhere k is a constant
What is the current flow through an 800Ω toaster when it is operating on 240V?
Resistance, R = 800Ω
Potential difference, V = 240V
Current, I = ?