Question

A resistance and diode are connected with a cell, if diode has negligible resistance and knee voltage(0.7 V), find current across R.

• A. 0.23 A
• B. 0.27 A
• C. 0.43 A
• D. 0.20 A

Answer 1

The correct option is D 0.20 A

$AcrossR,\Delta V=4.7-0.7=4VI=\frac{\Delta V}{R}=\frac{4}{20}=0.2A$