An example of a resistive load is?

A crankcase heater is an example of a resistive load because it operates by converting electrical energy into heat through resistance. In resistive loads, the current flowing through the conductor encounters resistance, which causes heat to be produced as a byproduct of the electrical current flow.

Crankcase heaters are typically used in refrigeration and HVAC systems to maintain the temperature of the compressor oil, ensuring that it remains fluid and prevents damage when the system is not in operation. This heating element works purely on the resistive principle, allowing it to effectively warm the surrounding area without any moving parts or complex electromagnetic interaction.

In contrast, a blower motor, compressor, and heat pump involve electrical components that generate magnetic fields and perform mechanical work, which classifies them as non-resistive loads. These components either drive fans or compress refrigerants, relying more on inductive and reactive properties rather than purely resistive characteristics. Thus, the crankcase heater stands out as the only example of a device that functions solely based on resistive principles.