Voltage Versus Current

In an electric field electric charges are affected by a force acting on them.

Voltage versus current. Voltage is represented in equations and schematics by the letter v. 2 voltage vs current. In other words current is the rate of flow of electric charge. In other words current is the rate of flow of electric charge.

Thus work has to be done on a charged particle to move from one point in an electric field to another point this work is defined as the electric potential difference between those two points. Electric potential difference is also called as voltage between two points. For this reason the quantities of voltage and resistance are often stated as being between or across two points in a circuit. In this analogy charge is represented by the water amount voltage is represented by the water pressure and current is represented by the water flow.

Current is the rate at which electric charge flows past a point in a circuit. Current versus voltage comparison chart. Voltage is a measure of the pressure that allows electrons to flow while amperage is a measure of the volume of electrons. In other words current is the rate of flow of electric charge.

So for this analogy remember. Voltage also called electromotive force is the potential difference in charge between two points in an electrical field. On the other hand voltage is the electrical force that drives an electric current between two points. The amount of current in a circuit depends on the amount of voltage and the amount of resistance in the circuit to oppose current flow.

Key difference current vs voltage. Current is the rate at which electric charge flows past a point in a circuit. Conventional current always flows through these devices in the direction of the electric field from the positive voltage. Voltage also called electromotive force is the potential difference in charge between two points in an electrical field.

Just like voltage resistance is a quantity relative between two points. Examples are resistors and electric motors. Devices which have i v curves which are limited to the first and third quadrants of the i v plane passing through the origin are passive components loads that consume electric power from the circuit. When describing voltage current and resistance a common analogy is a water tank.