Jänniteväliin

Jänniteväliin, meaning "voltage gap" or "voltage difference" in Finnish, refers to the disparity in electrical potential between two points. This difference is the driving force that causes electric current to flow in a conductor. When a voltage difference exists, charge carriers, typically electrons, are pushed from the area of higher potential to the area of lower potential, creating an electrical current.

The magnitude of the voltage difference is measured in volts (V). A larger voltage difference will result in a stronger force pushing the charge carriers, leading to a greater current flow, assuming other factors like resistance remain constant. In simple circuits, this voltage difference is often provided by a power source such as a battery or a mains supply.

Understanding jänniteväliin is fundamental to comprehending electrical circuits and phenomena. It is a key concept in Ohm's Law, which mathematically describes the relationship between voltage, current, and resistance. The presence or absence of a jänniteväliin determines whether electricity will flow and at what rate. It is also a crucial factor in electrical safety, as excessive voltage differences can pose a significant hazard.