ECE :: Electronic Devices and Circuits
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GaAs has an energy gap 1.43 eV the optical cut off wavelength of GaAs would lie in the
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Which of the following is basically a voltage controlled capacitance?
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When the i-v curve of a photodiode passes through origin the illumination is
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An n type silicon bar 0.1 cm long and 100 μm2 in cross-sectional area has a majority carrier concentration of 5 x 1020/m3 and the carrier mobility is 0.13 m0/V-s at 300k. If the charge of an electron is 1.6 x 10-19 coulomb, then the resistance of the bar is
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The threshold voltage of a MOSFET can be lowered by
- using thin gate oxide
- reducing the substrate concentration
- increasing the substrate concentration.
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In which device does the extent of light controls the conduction