jännityseroja
Jännityseroja refers to the difference in electrical potential between two points in a circuit. This potential difference, also known as voltage, is what drives the flow of electric current. When there is a jännitysero, charges are pushed from one point to another, creating a current. The magnitude of the jännitysero determines how much current will flow, given a certain resistance in the circuit, as described by Ohm's law.
In a simple circuit, such as one with a battery and a light bulb, the battery creates
Jännityseroja can be measured using a voltmeter. When a voltmeter is connected in parallel across two points