An ultra-low power sensor operates using energy harvesting from various sources for efficient monitoring. The oscillator ...

The Wheatstone bridge is a ubiquitous circuit configuration that is useful in detecting small changes in resistance.

There are better portamento circuits out there, but they’ll probably involve op-amps. As a quick aside, you can make a rudimentary keyboard with just a bunch of push buttons and voltage sources.

You can investigate voltage across cells and lamps in a series and parallel circuit by connecting the following circuits. Put one voltmeter in position V 1 and record the reading in a suitable table.

The circuit of a voltage divider may be drawn with the two resistors vertical, not horizontal. If there are two resistors in series across a voltage source, then the circuit is a voltage divider.