What is the Difference Between Potential Difference and Voltage?

Potential difference and voltage are often used interchangeably, but they have slightly different meanings and connotations. Here are the differences between the two:

1. Definition: Potential difference is the difference in potential between two points in a conservative vector field. Voltage, on the other hand, is the measure of electric potential difference and is used to describe the external work needed to bring a charge from one location to another location in an electric field.
2. Unit: Both potential difference and voltage are measured in volts (V). However, potential difference is typically used to describe the difference in potential energy between two points, while voltage is used to describe the work required to move a charge between those points.
3. Instrumentation: A voltmeter is used to measure potential difference or voltage between two points in a circuit. The potential difference can be calculated using the formula V = I x R, where V is the potential difference, I is the current, and R is the resistance.

In summary, potential difference and voltage describe the same quantity but have slightly different connotations. Potential difference focuses on the difference in potential energy between two points, while voltage emphasizes the work required to move a charge between those points. Both potential difference and voltage are measured in volts.

Comparative Table: Potential Difference vs Voltage

Here is a table that highlights the differences between potential difference and voltage:

Please note that while potential difference and voltage may seem similar, they have distinct characteristics. Potential difference represents the work done to move a unit charge, while voltage refers to the electromotive force or electric tension that causes the charge to flow.