Resistors are electrical components that oppose the flow of either direct or alternating current. They are used to protect, operate, or control circuits

Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC). 

Ground bond testers are electrical safety test devices that perform electrical compliance tests.

Current sensing resistors convert the current flowing through it to a voltage drop. Monitoring or measuring this voltage drop allows the current through the resistor to be measured. Applications for current sensing resistors include power supplies, receptacles, and battery packs. 

Power resistors are used in power generation and distribution, high-voltage applications, control systems, and other power system applications. They include load banks, grounding resistors, and dynamic braking resistors

Chip resistors are passive resistors with a form factor of an integrated circuit (IC) chip. Typically, they are manufactured using thin-film technology

Power supplies are devices that produce AC or DC power.  This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters

Resistor, capacitor networks (RC networks) are integrated circuits (ICs) that contain resistor-capacitor arrays in a single chip

DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies

Shunts resistors are connected in parallel with an instrument or component to divert electrical current. They provide an alternate path for current in case of failure

High voltage power supplies use linear technology to provide one or more DC outputs at voltage levels of hundreds or thousands of volts

Dynamic Braking Resistors (DBRs) are used to absorb the high amount of energy generated when stopping electric motors in systems such as trains, elevators, etc

Power distribution units (PDUs) have an electrical input and several outputs, often as electrical outlets, for powering multiple devices. 

AC power cords carry alternating current from one area to another. There are many different standard plugs and voltages, depending upon the country

PV and solar power systems convert light into electricity. They are the building blocks of photovoltaic (PV) modules