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A p-n junction with metal contacts at its ends is a:
AResistor coil
BJunction diode
CTransistor pair
DCapacitor plate
Answer & Solution
Correct answer: B. Junction diode
1. The contacts let you apply an external voltage.
2. It is a two-terminal device.
3. It is a semiconductor diode.
_Source: NCERT Class 12 Physics Part II, Chapter 14, Semiconductor Electronics._
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