**Question 4: Voltage is always measured between two points. Why?**
Answer

Voltage is the potential difference between two points. Usually, both the points are at different potentials. Voltage gives us the difference between the potentials of the two points. Therefore, voltage is always measured between two points.

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Short question are not good

Voltages are always measured with respect to a reference, so you need two points, one the reference and the other the point where it is being measured.

Voltage is a difference in potential between two points, where one point is at higher potential and the other is at a lower potential, therefore the difference is what matters and is termed as potential difference or voltage.

Fawad AhmadThank you, sir. You put it in an easier way.

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