The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...

If you want to measure resistance and you know Ohm’s law, it seems like you have an easy answer, right? Feed a known current through the thing you want to measure and read the voltage required. A ...

In this video, Jonny Nelson explains resistance. The current through a component depends on both the resistance of the component and the potential difference across the component.

If you increase the voltage across a component, there will be more current in the component. Too high a voltage and the bulb will blow. If you increase the number of lamps in a series circuit, there ...

Ningbo Joyson Electronic has been granted a patent for a programmable resistance circuit that configures selected resistances using a reference resistor. The circuit utilizes a modulated voltage ...