What is the purpose of load resistor?

A load resistor is a component that has the sole function of increasing the load resistance of a circuit to a specific level. It is an output testing device that is used as an ideal output while designing or testing an electrical circuit.

What is load resistance in op amp?

As can be seen from the diagram, the op amp output resistance is the DC resistance that appears in series with the output from an ideal amplifier located within the chip. In other words the output resistance can be measured by looking at the voltage drop caused when a defined load is added to the output.

What is load resistance RL?

In an amplifier the load resistance RL is equal to the plate resistance (rβ).

What is the difference between a resistor and a load?

Resistor observes the flow of current and emits in the form of heat. But the load is something which is utilising the current flow through the circuit and working as per the application. Load resistance is still a resistance. ” load is something which is utilising the current flow”.

Why active load is used in amplifier to in intermediate stage of amplifier?

Answer: To increase gain usually large collector resistance value as gain is proportional to load resistor. However, due to limitation of maximum value load resistor, active loads are used in amplifier to obtain large gain in intermediate stages of amplifier.

Do op amps have resistance?

1.4 Ideal Op Amp Impedance An ideal op-amp has zero output impedance. This means that the output voltage is independent of output current. So the ideal op amp can drive any load without an output impedance dropping voltage across it.

Can a resistor be a load?

In a circuit, an element which consumes electric power is considered as a load. Resistor also consumes power. So, resistor can be represented instead of load, or, every load is consuming power as the same way as resistor consumes. Example of load in electric circuits are appliances and lights.

What is difference between load resistance and resistance?

Resistance is the usual term you have heard about everywhere. The proportionality constant from ohm’s law. Load resistance is also a resistance, but it has a very specific meaning in the context of electric circuits; it is the resistance connected between the output stage of a circuit, and the ground.