A changing electric flux develops in the region:
Correct answer: B. A magnetic field
- A. An electric field
- B. A magnetic field
- C. Gravitational field
- D. None of these
Explanation
A changing electric flux can develop in a region when the electric field passing through a surface changes over time. This change in electric flux can occur when either the strength of the electric field changes or when the area through which the electric field passes changes with time. According to Faraday's law of electromagnetic induction, a changing magnetic field induces an electric field, leading to a changing electric flux in the region.
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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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