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A diode having potential difference 0.5 V across its junction which does not depend on current, is connected in series with resistance of 20Ω across source. If 0.1 A current passes through resistance then what is the voltage of the source? |
1.5 V 2.0 V 2.5 V 5 V |
2.5 V |
$V' = V + IR = 0.5 + 0.1× 20 = 2.5V$
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