Multiple Choice
Given a point charge located at a distance from point in vacuum, what is the electric potential at point due to this charge?
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25. Electric Potential
Electric Potential
Multiple Choice
In the context of electric potential, what does voltage describe between two points?
A
The force per unit charge at a point (the electric field magnitude),
B
The electric potential energy change per unit charge,
C
The resistance to current flow,
D
The total electric charge stored on an object,
Verified step by step guidance1
Understand that voltage, also known as electric potential difference, describes how much electric potential energy changes per unit charge when moving between two points in an electric field.
Recall the formula for voltage: \(V = \frac{\Delta U}{q}\), where \(\Delta U\) is the change in electric potential energy and \(q\) is the charge.
Recognize that voltage is not the force per unit charge (which defines the electric field \(E = \frac{F}{q}\)), nor is it resistance or total charge stored.
Interpret voltage as a measure of the work done per unit charge to move a charge between two points, reflecting energy changes rather than force or current.
Summarize that voltage quantifies the energy change per charge, making it the correct description of electric potential difference between two points.
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