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What is the SI unit of electric potential difference?
Watt
Joule
Volt
Coulomb
Volt
The SI unit of electric potential difference is the Volt. It measures the amount of electrical potential energy per unit charge between two points in a circuit.
The SI unit of electric potential difference is the Volt. It measures the amount of electrical potential energy per unit charge between two points in a circuit.
Think of voltage like water pressure in a pipe; it represents the push that drives electrical current through a circuit.
V = W/Q: Volt equals Work over Charge.
V=QWтАЛ тАФ Electric potential difference formula
1┬аV=1┬аJ/C тАФ Standard relation
Electric potential difference represents the work done in moving a positive test charge from one point to another in an electric field. It is mathematically defined as the ratio of work done to the magnitude of the charge moved.
Named in honor of the Italian physicist Alessandro Volta.
Measured using a voltmeter connected in parallel across components.
Equivalent to one joule of work per coulomb of charge.
Power distribution and electrical grids
Measuring battery voltage ratings in electronics
Option A (Watt) is the SI unit of electric power.
Option B (Joule) is the SI unit of work, energy, or quantity of heat.
Option D (Coulomb) is the SI unit of electric charge.
C is correct тАФ The Volt is the standard international SI unit of electric potential difference.
Do not confuse electric potential difference (Volt) with electric charge (Coulomb) or electric power (Watt) when answering exam questions.