Electrical resistance

... Carrie Edwards Electrical resistance Electrical resistance is the slowing of a current through an electrical circuit. The current is a word used to describe the flow of electrons, and is measured in Amps. Resistance happens in all electrical circuits. Resistant, is a property of any object or substance of resisting or opposing the flow of an electrical current. As a conductor conducts electricity as current, a resistor is the opposite. It slows the current down, it is another hurdle for it to pass through. Resistance cannot be measured directly but can be calculated from the current flowing along a wire and the voltage difference across it (potential difference) Resistance is then calculated using the equation: R = V Where: V = Voltage difference across wire (volts) I I = Current flowing along wire (amps) R = Resistance of wire (ohms or ) One way resistance can occur is through the wire. The

want to read more? →