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Give reasons for the following
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1
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5103
|
September 9, 2016
|
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With what considerations in view, a photodiode is fabricated ? State its working with the help of a suitable diagram
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1
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5065
|
September 9, 2016
|
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Explain with the help of a diagram the formation of depletion region and barrier potential in a p-n junction
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1
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13397
|
September 9, 2016
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The graph of potential barrier versus width of depletion region for an unbiased diode is shown in A
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1
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6357
|
September 9, 2016
|
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Name the semiconductor device that can be used to regulate an unregulated dc powersupply. With the help of I-V characteristics of this device, explain its working principle
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0
|
3203
|
September 9, 2016
|
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The current in the forward bias is known to be more
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1
|
2253
|
September 9, 2016
|
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For the circuit shown here, find the current flowing through the 1 ohm resistor. Assume that the two diodes D1 and D2 are ideal diodes
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1
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8852
|
September 9, 2016
|
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Assuming that the two diodes D1 and D2 used in the electric circuit shown in the figure are ideal, find out the value of the current flowing through 2.5 Ohm resistor
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1
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11176
|
September 9, 2016
|
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Mention the important considerations required while fabricating a pit
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1
|
5411
|
September 9, 2016
|
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Explain with the help of a circuit diagram, the working of a pn junction diode as a half-wave rectifier
|
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0
|
4118
|
September 9, 2016
|
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What happens to the width of depletion layer of a pm junction when it is 1. forward biased, 2. reverse biased?
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0
|
478
|
September 9, 2016
|
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The graph shown in the figure represents a plot of current versus voltage for a given semiconductor
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1
|
7023
|
September 9, 2016
|
|
Why is photodiode used in reverse bias?
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0
|
8032
|
September 9, 2016
|
|
The graph shown here represents the V-I characteristics of a device. Identify the region, if any, over which this device has a negative resistance
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1
|
2126
|
September 9, 2016
|
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How biasing in diode, used in rectification?
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0
|
972
|
September 9, 2016
|
|
Write any two distinguishing features between conductors, semiconductors and insulators on the basis of energy band diagrams
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0
|
16144
|
September 9, 2016
|
|
Distinguish between n-type and p-type semi-conductors on the basis of energy band diagrams
|
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1
|
19284
|
September 9, 2016
|
|
Draw energy band diagrams of n-type and p-type semiconductors at temperature T > 0 K. Mark the donor and acceptor energy levels with their energies
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0
|
5191
|
September 9, 2016
|
|
Distiguish between linearly polarised and unpolarised light
|
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1
|
2640
|
September 9, 2016
|
|
How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a polaroid gets polarised?
|
|
1
|
2971
|
September 9, 2016
|
|
How does an unpolarised light incident on a polaroid get polarised?
|
|
1
|
6413
|
September 9, 2016
|
|
Distinguish between unpolarised and linearly polarised light
|
|
1
|
3301
|
September 9, 2016
|
|
Describe briefly, with the help of suitable diagram, how the transverse nature of light can be demonstrated by the phenomenon of polarisation,
|
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1
|
5984
|
September 9, 2016
|
|
Name the phenomenon which proves transverse wave nature of light
|
|
1
|
6262
|
September 9, 2016
|
|
Find an expression for intensity of transmitted light
|
|
1
|
6545
|
September 9, 2016
|
|
Distinguish between unpolarised and a linearly polarised light
|
|
1
|
3068
|
September 9, 2016
|
|
State Brewster's law
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1
|
4946
|
September 9, 2016
|
|
Business studies sample paper
|
|
0
|
407
|
September 9, 2016
|
|
Figure shows a system of two polarizing sheets in the path of initially unpolarized light
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0
|
3679
|
September 9, 2016
|
|
Which of the following waves can be polarised
|
|
1
|
1603
|
September 9, 2016
|