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Q.
Assume that each diode shown in the figure has a forward bias resistance of $50\, \Omega$ and an infinite reverse bias resistance. The current through the resistance $150\, \Omega$ is
WBJEEWBJEE 2015Semiconductor Electronics: Materials Devices and Simple Circuits
Solution:
The circuit is
As the lower diode attached to $100\, \Omega$ resistance is in reversed biased so, it is non-conducting.
Now, the circuit can be redrawn as,
$\therefore $ Current through the circuit, $I = \frac{V}{R}$
$=\frac{10}{250}=0.04\, A$
