An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave. Oscillators convert direct current (DC) from a power supply to an alternating current signal.
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The realm of our planet comprising of air is known as atmosphere. The realm comprising of water is known as hydrosphere. All living organisms, right from the algae to the plants, the wildlife to human beings, form the biosphere. All land or rocks and ground form the geosphere. Geosphere: Explained! The atmosphere encapsulates the planet. The hydrosphere forms a humongous majority of the surface and also a substantial part of the earthâs crust, including ground water.