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I-V characteristics of four devices are shown in figure.
(a)
(b)
(c)
(d)
Identify devices that can be used for modulation
Options:
(a)
(b)
(c)
(d)
Identify devices that can be used for modulation
Solution:
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Verified Answer
The correct answer is:
(ii) and some regions of (iv)
(ii) and some regions of (iv)
The device which follows square law can be used for modulation purpose. Characteristics shown by (i) and (iii) corresponds to linear devices as graphs are straight line. Characteristics shown by Graph (ii) corresponds to the square law device. Some part of graph (iv) also shows square law.
Hence, (ii) and (iv) can be used for modulation.
Hence, (ii) and (iv) can be used for modulation.
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