Modern Physics 6 Question 15
17. The reading of the ammeter for a silicon diode in the given circuit is
(2018 Main)
(a) $13.5 mA$
(b) 0
(c) $15 mA$
(d) $11.5 mA$
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Solution:
- For silicon diode, potential barrier is $0.7 V$. Therefore, the given circuit is as shown in figure.
$$ I=\frac{\text { net emf }}{\text { net resistance }}=\frac{3-0.7}{200} A=11.5 mA $$
