Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

38. 

Which of the following is an active device?

[A]. Transformer
[B]. Silicon controlled rectifier
[C]. Electric bulb
[D]. Loudspeaker

Answer: Option B

Explanation:

No answer description available for this question.

Shivank said: (Dec 23, 2016)  
Transformer is passive device.

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