### Potentiometers

Resistors provide a fixed value of resistance that blocks or resists the flow of electrical current around a circuit, as well as producing a voltage

Resistors provide a fixed value of resistance that blocks or resists the flow of electrical current around a circuit, as well as producing a voltage

Ohms Law states that when a voltage (V) source is applied between two points in a circuit, an electrical current (I) will flow between them

Unlike the fuse or circuit breaker which offers over-current protection, the varistor provides over-voltage protection by means of voltage-clamping in a similar way to the

The job of a Resistor is to limit the current flowing through an electrical circuit. Resistance is measured in Ohm’s and is given the symbol Ω Carbon, Film and Wirewound

Resistor colour codes can sometimes be a little confusing until you understand how they work. But once you get the hang of them it becomes

When an electrical current passes through a resistor due to the presence of a voltage across it, electrical energy is lost by the resistor in

In the previous tutorials we have looked at resistors, their connections and used Ohm’s Law to calculate the voltage, current and power associated with them.

Unlike current which flows around a closed electrical circuit in the form of electrical charge, potential difference does not move or flow it is applied.

In the previous tutorials we have learnt how to connect individual resistors together to form either a Series Resistor Network or a Parallel Resistor Network

Unlike the previous series resistor circuit, in a parallel resistor network the circuit current can take more than one path as there are multiple paths

There are many different types of Resistor available which can be used in both electrical and electronic circuits to control the flow of current or to produce

Individual resistors can be connected together in either a series connection, a parallel connection or combinations of both series and parallel, to produce more complex