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प्रश्न
State its any ‘two’ uses of photodiode.
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उत्तर
Uses Of Photodiode:-
i. Photodiode is used in optocouplers which are used to couple isolated circuits.
ii. Photodiodes are widely used to detect optical signals.
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संबंधित प्रश्न
With the help of a neat circuit diagram, explain the working of a photodiode.
If a small voltage is applied to a p-n junction diode, how will the barrier potential be affected when it is (i) forward biased
If a small voltage is applied to a p-n junction diode, how will the barrier potential be affected when it is(ii) reveres biased?
Using the necessary circuit diagrams, show how the V-I characteristics of a p-n junction are obtained in
Forward biasing
How are these characteristics made use of in rectification?
Using the necessary circuit diagrams, show how the V-I characteristics of a p-n junction are obtained in
Reverse biasing
How are these characteristics made use of in rectification?
A p-n photodiode is fabricated from a semiconductor with band gap of 2.8 eV. Can it detect a wavelength of 6000 nm?
The width of depletion region of p-n junction diode is _______.
(A) 0.5 nm to 1 nm
(B) 5 nm to 10 nm
(C) 50 nm to 500 nm
(D) 500 nm to 1000 nm
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(c) Name the semiconductor device used in solar panels. Briefly explain with the help of a diagram, how this device works
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Draw V − I characteristics of a p-n junction diode. Answer the following questions, giving reasons:
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(ii) Why does the reverse current show a sudden increase at the critical voltage?
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Explain photodiode.
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- The potential barrier of the p-n junction lies between 0.1 V to 0.3 V.
The amplifiers X, Y and Z are connected in series. If the voltage gains of X, Y and Z are 10, 20 and 30, respectively and the input signal is 1 mV peak value, then what is the output signal voltage (peak value)
- if dc supply voltage is 10V?
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Briefly explain how emf is generated in a solar cell.
Draw solar cells of I-V characteristics.
