1
GATE ECE 2017 Set 2
Numerical
+2
-0
For a particular intensity of incident light on a silicon pn junction solar cell, the photocurrent
density (JL) is 2.5 mA/cm2
and the open-circuit voltage (V$$_{oc}$$) is 0.451 V. consider thermal
voltage (V$$_T$$) to be 25 mV. If the intensity of the incident light is increased by 20 times,
assuming that the temperature remains unchanged. V$$_{oc}$$ (in volts) will be ______.
Your input ____
2
GATE ECE 2016 Set 2
Numerical
+2
-0
Consider a region of silicon devoid of electrons and holes, with an ionized donor density of
$${\mathrm N}_\mathrm d^+=10^{17}\;\mathrm{cm}^{-3}$$. The electric field at x = 0 is 0 V/cm and the electric field at x = L is
50 kV/cm in the positive x direction. Assume that the electric field is zero in the y and z directions
at all points.
Given q = 1.6 × 10−19 coulomb, $$\varepsilon$$0 = 8.85 × 10−14 F/cm, $$\varepsilon$$r = 11.7 for silicon, the value of L in nm is ________.
Your input ____
3
GATE ECE 2016 Set 3
MCQ (Single Correct Answer)
+2
-0.6
Consider the charge profile shown in the figure. The resultant potential distribution is best
described by


4
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
The electric field profile in the depletion region of a p-n junction in equilibrium is shown
in the figure. Which one of the following statements is NOT TRUE?
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Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous
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