Spinnor said:Sometimes it might help to throw in some numbers. Let Va be 1 volt and let Vb be 2 volts. If we are moving the positive charge from a to b then we are doing work, so it looks like the answer is true?
Potential difference, also known as voltage, is the difference in electric potential between two points in an electric circuit. It is measured in volts (V) and represents the amount of work needed to move a unit of electric charge from one point to another.
Potential difference is directly related to the strength of the electric field. The greater the potential difference, the stronger the electric field. This is because the electric field is responsible for creating the potential difference.
The unit of potential difference is the volt (V), which is equivalent to one joule per coulomb (J/C).
Potential difference can be measured using a voltmeter, which is connected in parallel to the circuit. The voltmeter will display the potential difference in volts.
Potential difference is the driving force behind the movement of electric charges in a circuit. A higher potential difference will result in a greater flow of electric current, while a lower potential difference will result in a lower flow of electric current.