Electronics and Experimental Methods (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 35 - 39 of 50

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Question number: 35

» Electronics and Experimental Methods » Opto-Electronic Devices » Solar Cells

Appeared in Year: 2012

MCQ▾

Question

The output characteristic of a solar panel at a certain level of irradiance is shown in the figure below.

The output characteristic of solar panel

The Output Characteristic of Solar Panel

In figure the output characteristic of the solar panel at certain level of irradiance.

If the solar cell is to power a load of , the power drawn by the load is –

(December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 36

» Electronics and Experimental Methods » Digital Techniques and Applications » Registers

Appeared in Year: 2012

MCQ▾

Question

The output (O) of the given circuit in cases and , where;

Case I:

Case II:

are respectively,

A logical circuit with five gates

A Logical Circuit With Five Gates

In figure a logical circuit of five gates is shown.

(June)

Choices

Choice (4) Response

a.

0, 0

b.

1, 1

c.

0, 1

d.

1, 0

Passage

Light of wavelength 660 nm and power of is incident on a semiconductor photodiode with an absorbing layer of thickness of .

Question number: 37 (1 of 2 Based on Passage) Show Passage

» Electronics and Experimental Methods » Opto-Electronic Devices » Photo-Detectors

MCQ▾

Question

The generated photo – current for a quantum efficiency of unity will be –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 38 (2 of 2 Based on Passage) Show Passage

» Electronics and Experimental Methods » Opto-Electronic Devices » Photo-Detectors

MCQ▾

Question

If the absorption coefficient at this wavelength is and if power is lost on reflection at the surface, the power absorbed will be –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 39

» Electronics and Experimental Methods » Opto-Electronic Devices » Solar Cells

Appeared in Year: 2011

MCQ▾

Question

Monochromatic light of wavelength and intensity falls on a solar cell of area . The conversion efficiency of the solar cell is 10%. If each converted photon results in an electron – hole pair, what is the maximum circuit current supplied by the solar cell?

(Take , and ) (December)

Choices

Choice (4) Response

a.

b.

c.

d.

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