MCQ
In the circuit shown in Fig., if the diode forward voltage drop is 0.3V, the voltage difference between A and B is:
- A1.3V.
- B2.3V.
- C0.
- D0.5V.
✓
Answer
- 2.3V.
Solution:
If V is the potential difference between A and B, then according to the questions and using Kirchhoff’s law, we have
V - 0.3 = [(5+ 5)103] × (0.2 × 1(10-3))
⇒ V - 0.3 = [(5 + 5)103] × (0.2 × 10-3)
⇒ V - 0.3 = 10 × 103 × 0.2 × 10-3 = 2
⇒ V = 2 + 0.3 = 2.3V
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