There are a variety of electrical circuits. We differentiate them through various diagrams and how electrical components connect in a circuit.

Know your way around an electric circuit? Show that you know your series circuits from your parallel circuits with BBC Bitesize.

This four-wire trick is useful even if you don’t want to measure resistance with precision. For example, high-current or high-accuracy regulated power supplies use the same trick.

Impedance Impedance, a term for total resistance in an alternating current circuit, is very similar to resistance and is measured in ohms. An alternating current circuit contains normal resistance but ...

In a short circuit condition, resistance (R) gets very small and is essentially based on the total resistance in the electrical distribution system, from the derived source of power to the point of ...

This Design Idea provides complete instructions for designing solar day lamps using both passive and active current limiting circuits.

The circuit, with its extra resistance, will now have a total resistance of 7 ohms for a current draw of 2 amps, and it's our mission to find that resistance and repair it.

This comparison reveals that while MCBs may be suitable for basic protection, ECBs offer greater speed, control, and ...

Adapted from The Circuit Designer's Companion, Third Ed., by Peter Wilson (Newnes). [Part 1 began a look at grounding: when to consider it, how chassis materials affect it, and the problem of ground ...

The total voltage drop is ~1.6 V. Therefore, if the current limiter is connected with a +5-V supply, the load will get ~3.4 V, which is unacceptable in low-voltage circuits.