Question:
In a p-n junction photo cell, the value of the photo-electromotive force produced by monochromatic light is proportional to
In a p-n junction photo cell, the value of the photo-electromotive force produced by monochromatic light is proportional to
Updated On: May 1, 2024
- The barrier voltage at the p-n junction.
- The intensity of the light falling on the cell.
- The frequency of the light falling on the cell.
- The voltage applied at the p-n junction.
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The Correct Option is B
Solution and Explanation
In photocell, photoelectromotive force, is the force that stimulates the emission of an electric current when photovoltaic action creates a potential difference between two points and the electric current depends on the intensity of incident light.
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Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.