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tmn50

  • 2 years ago

a question about diodes Why the voltmeter shows no voltage when we take a diode and measure its voltage out of any network i mean since there's an elecric field inside shouldn't the voltmeter measure a voltage what am i missng here?

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  1. SABARINATHAN
    • 2 years ago
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    you would get an voltage only if the doides only if it reverse biased. For example you get a voltage across a resistor as it blocks the flow of current. But in the case of diodes, it offers approximately a zero resistance and produces a very small drop of about 0.7v across it. which is almost zero. Thats y you dont get a voltage when u measure across the diode.

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