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I - V characteristics of four devices ar...

`I - V` characteristics of four devices are shown in Fig.




Identify devices that can be used for modulation :

A

`'I' and 'iii'`

B

`only 'iii'`

C

` ii' and some region of 'iv'`

D

All the devices can be used

Text Solution

Verified by Experts

The correct Answer is:
C
Here , (i) represents Ideal modulation related to triode valve for linear plate modulation . (ii) represents square law diode modulation . (iii) represents constant current source (iv) represents part of it as square law modulation .
Thus , for modulation (ii) and some regions of (iv) can be used .
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Knowledge Check

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