The Photodiode, Solar Cell, and Zener Diode; Zener Diode as a Voltage Regulator NEET Questions

Physics - Electronic Devices

The Photodiode, Solar Cell, and Zener Diode; Zener Diode as a Voltage Regulator MCQ Questions


13.
A photodiode is sensitive to:
A.
Magnetic field
B.
Light
C.
Electric field
D.
Pressure
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ANSWER :
B. Light
14.
Which biasing condition is preferred for Zener diode voltage regulation?
A.
Forward bias
B.
Reverse bias
C.
No bias
D.
AC bias
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ANSWER :
B. Reverse bias
15.
The main advantage of a Zener diode as a voltage regulator is:
A.
High efficiency
B.
Low power dissipation
C.
Constant current
D.
Variable resistance
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ANSWER :
A. High efficiency
16.
The depletion region in a photodiode:
A.
Remains constant
B.
Expands under light
C.
Shrinks under light
D.
Disappears completely
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ANSWER :
B. Expands under light
17.
The efficiency of a solar cell depends on:

NEET - 2023

A.
Temperature only
B.
Light intensity only
C.
Material and light intensity
D.
Current supply
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ANSWER :
C. Material and light intensity
18.
The fill factor of a solar cell is defined as:
A.
The ratio of Pmax to Voc * Isc
B.
The ratio of Voc to Isc
C.
The product of voltage and current
D.
Power output per unit area
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ANSWER :
A. The ratio of Pmax to Voc * Isc