Answer / tara dutt bhatt

passive components-resister,capaciters,inductors,transformer
etc.
active components-transisters,semiconductor
devices,scr,loudspeaker,diodes etc.

Answer / chandu

active components are the elements which require an external
supply to exhibit there characteristics,for e.g a transistor
need dc supply to show its vi characteristics.where as
passive components does not require external supply to show
its characteristics e.g resistors

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