alexratman said:1. If two cells, one of 4.5V and one of 3V are connected in parallel what is the potential Difference across the junctions between them.
2. I = [tex]\frac{V}{R}[/tex]
3. As 4.5v is greater it is the potential difference as they don't add up?
Potential difference, also known as voltage, is the measure of the difference in electric potential between two points in an electric circuit. It is measured in volts (V).
Potential difference can be calculated by dividing the energy transferred by the charge that moves between the two points. It can also be calculated by multiplying the current by the resistance in the circuit.
The potential difference in a junction of two cells refers to the difference in electric potential between the positive and negative terminals of the two cells. It is important to note that the potential difference between the two cells will depend on their individual voltages.
The potential difference in a junction of two cells is important because it determines the direction in which current will flow in the circuit. This is because current always flows from a higher potential to a lower potential.
In a series circuit with two cells, the potential difference will add up. This means that the total potential difference in the circuit will be the sum of the individual potential differences of the two cells. In the case of a 4.5V and 3V cell, the total potential difference will be 7.5V.