PILA Y LED

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DIODE

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          DIODE  Real picture: Symbol:      How does it work? Allows current to flow easily in one direction, but severely restricts currents from flowing in the opposite dirction. Has two sides: the positive; an anode adne the negative; a cathode. Volts spent? The silicon diode, that is the most usual spends 0.6-0.7 V and the germanium diode use 0.25-0.30 V.
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LED

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     LED Real picture: Symbol: How does it works? A LED emits light by apllying a forward current to the pn junction of a compound semiconductor .
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