1. 4.2.Potential difference By- Saral Tayal

2. Potential Difference Definition Potential Difference: (Voltage) the difference in electric potential energy at two different points in the circuit -measured in Volts (V) Voltage = Current X Resistance

4. Potential Difference Waterfall Analogy -at the top water has high potential energy -at the bottom water has low potential energy -the energy turns the waterwheel

5. Potential Difference -before entering a load, electron has high potential energy -after leaving a load, electron has low potential energy -the energy is converted into another form Eg. Light, Heat etc.

6. Potential Difference Voltmeter: measures the voltage/potential difference between a load -has to be placed in parallel load being measured

7. Potential Difference in series and in parallel In series the voltage/ potential difference is split between the no. of load. They all add up to the voltage of the power supply In parallel the voltage is the same across the parallel voltages

8. That’s it reference- http://www.physicsclassroom.com/class/circuits/Lesson-1/Electric-Potential-Difference http://www.physicsclassroom.com/class/circuits/Lesson-1/Electric-Potential-Difference