Question 216: Semiconductors and Logic Gates

Question

The cut-off voltage of the diodes (shown in figure) in forward bias is 0.6 V. The current through the resister of 40 $$\Omega$$ is __________ mA.

Accepted Answer

D
1
: conducting
D
2
: open circuit
$$i = {{1 - 0.6} \over {60 + 40}}A$$
$$ = {{0.4} \over {100}}A$$
$$ \Rightarrow i = 4$$ mA

Semiconductors and Logic Gates