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  4. The circuit shown in the diagram contains two diodes, each with a forward resistance of 30 Ω and infinite reverse resistance. If the battery is of 3 V, then the voltage drop across 50 Ω resistance will be

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Q. The circuit shown in the diagram contains two diodes, each with a forward resistance of $30\, \Omega $ and infinite reverse resistance. If the battery is of $3\, V$, then the voltage drop across $50 \, \Omega $ resistance will bePhysics Question Image

AMUAMU 2015Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Diode Di get reverse biased where as diode $D_{2}$ get forward biased.
Voltage drop across $50\, \Omega$.
resistance $=\left(\frac{3}{150}\right) \times 50=1\, V$

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