What is the role of a resistor in a circuit?

The main function of resistors in a circuit is to control the flow of current to other components. Take an LED (light) for example. If too much current flows through an LED it is destroyed. So a resistor is used to limit the current.

Also know, what is the load resistance?

The load resistance or, more generally, the load impedance (in AC circuits) is the equivalent resistance/impedance of the device attached to the output of a given circuit or system. For instance, the equivalent input impedance of a loudspeaker is the "load impedance" of the audio amplifier driving the loudspeaker.

What is a load resistor in a circuit?

Thevenin's Theorem is especially useful in analyzing power systems and other circuits where one particular resistor in the circuit (called the “loadresistor) is subject to change, and re-calculation of the circuit is necessary with each trial value of load resistance, to determine voltage across it and current

What is load resistance in circuits?

An electrical load is an electrical component or portion of a circuit that consumes (active) electric power. This is opposed to a power source, such as a battery or generator, which produces power. In electric power circuits examples of loads are appliances and lights.

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