What is electric potential difference?
PhysicsClass 10CBSEAnswered 28 May 2026
Answer
Electric potential difference (voltage) between two points is the work done per unit positive charge in moving it from one point to another.
Formula: V = W/q or V_AB = V_A − V_B
- Drives current through a circuit.
- Measured by a voltmeter connected in parallel.
- 1 Volt = 1 Joule per Coulomb.
Ohm's Law connection: V = IR
Electric potential difference (voltage) is the energy per unit charge between two points and is the driving force behind electric current.
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