Name a device which glows even when a weak electric current passes through it.
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Answered by
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Answer:
LED - light emitting diode
Explanation:
it is a electric component which can glow even when less electric current is passed .
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Answered by
6
Light Emitting Diode (LED)
Explanation:
Light Emitting Diode (LED) is a device which glow even when a weak electric current passes through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light is determined by the energy required for electrons to cross the band gap of the semiconductor. White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device.
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