Sanya performed an experiment of obtaining characteristic curves of a junction diode. When she…
Physics20255 marksCase based
Sanya performed an experiment of obtaining characteristic curves of a junction diode. When she forward biased it, she found that beyond forward voltage $V = V_k$, the conductivity is very high. When she reverse biased the diode she found that a very small current (of about a few microamperes) flows in the diode. It remained constant even though she varied the voltage.
(i)[1.25]
In Figure 11, which one of the diodes is forward biased?
(ii)[1.25]
What is meant by a saturation current?
(iii)[1.25]
When applied voltage during forward bias is small, why does no current flow in the diode?
(iv)[1.25]
The circuit shown in the Figure 12 below contains two diodes, each with a forward resistance of $50\ \Omega$ and with infinite resistance during reverse bias. If the battery voltage is $6\text{ V}$, then calculate the current through the $100\ \Omega$ resistance.
