Correct option is C
The
electric potential difference (or voltage) between two points in a circuit is defined as the
work done per unit charge to move the charge from one point to the other. Mathematically, it is expressed as:
V = W/Q
Where:
· V = Potential difference (volts)
· W = Work done (joules)
· Q = Charge moved (coulombs)
| Resistance |
The Measure of the opposition to current flow in an electrical circuit. The SI unit of electrical resistance is the ohm ( Ω ). Named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current, and resistance. |
| Charge |
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Common symbols: Q. SI unit: Coulomb. |
| Current |
Current is the flow of electrical charge carriers like electrons. Current flows from negative to positive points. Sl unit: Ampere (A). |
