The substances which have intermediate values of resistivity are called _.
Correct answer: A. Semi-conductors
- A. Semi-conductors
- B. Electrons
- C. Circle
- D. Overlap
Explanation
Substances that have intermediate values of resistivity are called semiconductors. Resistivity refers to a material's inherent resistance to the flow of electric current. Semiconductors fall between conductors (materials with low resistivity) and insulators (materials with high resistivity) in terms of their ability to conduct electricity. They can conduct electricity under certain conditions but not as effectively as conductors, making them crucial in electronics for their ability to be controlled as conductors or insulators.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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