JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
Both the diodes used in the circuit shown are assumed to be ideal and have negligible resistance when these are forward biased. Built in potential in each diode is \(0.7\; \mathrm{V} .\) For the input voltages shown in the figure, the voltage (in \(Volts\)) at point \(A\) is
- A \(18\)
- B \(8\)
- C \(12\)
- D \(15\)
Answer & Solution
Correct Answer
(C) \(12\)
Step-by-step Solution
Detailed explanation
Diode \(D_{1}\) is forward biased and \(D_{2}\) is reverse biased. \(\therefore \mathrm{V}_{\mathrm{A}}=12.7-0.7=12\; \mathrm{V}\)
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