Reference Potential and Potential Difference – Rankers Physics

Electric Potential: Practice Problem & Solution

A point charge is placed at origin. Assuming potential to be zero at infinity, potential difference at two point A and B is found to be 10 V i.e., \(V_A - V_B = 10 \text{V}\). Now if the reference at infinity is changed to 10 V, then \(V_A - V_B\) will be
20 V
15 V
10 V

Solution Explained:

To solve this problem, we apply the core principles of Electric Potential. Understanding the underlying formula is key to arriving at the correct answer below:

The potential difference between two points is independent of the reference level of potential because the change in reference shifts both potentials by the same constant value.

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