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GATE 2023 EDC Quiz 72
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Question 1
By increasing temperature in which of the following material conductivity increases
(a) Metal
(b) Semiconductor
(c) Insulator
Question 2
The relation between Responsivity ( R) to the photon wavelength (λ) on a diode of λ1>λ2>λ3> λ4 is
Question 3
Photons of energy 1.62 × 10–19 Joules are incident on a photodiode which has a responsivity 0.75 A/W. If the optical power level is 10 μW. What is the photocurrent generated?
Question 4
If an electron has mobility and lifetime in a electron has mobility and lifetime in a semiconductor (at room temperature) as 0.36 m2/Vs and 340 μs, then the diffusion length is ______________mm.)
Question 5
A 0.46 thick sample of GaAs is illuminated with monochromatic light of 2 eV energy. The absorption coefficient is.The power incident on sample is 10 mW. The total energy absorbed by the sample is______(mW).
Question 6
Find the maximum realizable power (in mW) of solar cell if the open circuit voltage is 4.3 v and short circuit current is 2 mA and fill factor is 0.7.
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Nov 22ESE & GATE EC