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A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in | |
A. | light intensity [Correct Answer] |
B. | current [Wrong Answer] |
C. | flux density [Wrong Answer] |
D. | voltage [Wrong Answer] |