Question
In the circuit shown in figure, if A the diode forward voltage is 0.3 V, the voltage difference between A and B is
1.3 V
2.3 V
0
0.5 V
Solution
B.
2.3 V
Let V be the potential difference between A and B, then
V 0.3 = ( 5 + 5 ) × 103 × ( 0.2 × 10-3 )
V = 10 × 0.2 + 0.3
V = 2.3 V