Dummy loads for load resistors:

Dummy loads are alternative terminals in a circuit (e.g., amplifier) or appliance output port, the component, part or device that receives electrical power is called a dummy load. The most basic requirements for a dummy load are impedance matching and the power it can withstand. Informal loads are usually used temporarily during commissioning or testing of machine performance.

Dummy loads can be classified as resistive loads, inductive loads, capacitive loads and so on.

Dummy loads for high-frequency transmitter circuits are mainly frequency-permissive, impedance-matching, and capable of withstanding the transmitted power.

The role of load resistor:

Resistors are commonly used as loads for absorbing the unwanted power generated during the use of the product, or to buffer and brake. In addition for high precision resistors, products with high impedance is not allowed, which requires the selection of high-quality materials, high requirements of the process. Difference between Load and Load Resistor

Load is the electrical appliances and so on all the general term, as long as the electricity can work with the components, is the load, load resistance, is the load resistance size.

If the load is purely resistive components, load resistance can replace the load, if the load is not purely resistive components (such as motor or transformer) load resistance can not replace the load.