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14. Semicondutor electronics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics14. Semicondutor electronics1 Mark
MCQ
A diode having potential difference $0.5\, V$ across its junction which does not depend on current, is connected in series with resistance of $20$ $\Omega$ across source. If $0.1\, A$ passes through resistance then what is the voltage of the source.....$V$
  • A
    $1.5$
  • B
    $2$
  • ✓
    $2.5$
  • D
    $5$
✓

Answer

Correct option: C.
$2.5$
c
(c)$V' = V + IR$
$= 0.5 + 0.1 + 20$
$= 2.5\, V$

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