1.

In the circuit shown in figure, if the diode forward voltage drop is 0.3 V, the voltage difference between A and B is

Answer»

1.3 V
2.3 V
0
0.5 V

Solution :2.3 V
In above figure, calculating changes in electric potential during journey from POINT A to point B,
`V_(A)-(0.2xx10^(-3)xx5xx10^(3))-0.3-(0.2xx10^(-3)xx5xx10^(3))=V_(B)`
`therefore V_(A)-V_(B)=1+0.3+1=2.3V`


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