MHT CET 2024 Physics question
Not in JEE Advanced syllabus
A semiconductor device X is connected in series with a battery and a resistor. The current of 10 mA is found to pass through the circuit. If the terminals of X are connected in reverse manner, the current drops to almost zero. X may be
Answer: (B)
Solution
The device conducts a 10 mA current in one polarity and almost none when the terminals are reversed, so it is a one-way (rectifying) device with a non-symmetric - characteristic. A p-n junction diode does exactly this: forward bias lowers the barrier and a large forward current flows, while reverse bias raises
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