A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

This article proposes an resistor-capacitor-diode (RCD) snubber circuit connected to the load in parallel to suppress waveform oscillations. First, the design of the RCD snubber circuit for the Marx ...

Apple Inc. reported its financial results for the first quarter of 2025, revealing a better-than-expected performance in earnings per share (EPS) and revenue. The company posted an EPS of $1.65 ...

Save guides, add subjects and pick up where you left off with your BBC account. The supply voltage is a measure of the energy supplied to each electron. The voltage across each component is the ...