The main function of helix structure in a Travelling Wave Tube (TWT) i – McqOptions

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1.	The main function of helix structure in a Travelling Wave Tube (TWT) is
A.	To reduce axial velocity of RF field.
B.	To reduce noise figure of TWT
C.	To properly focus electron beam
D.	To reduce axial velocity of electron
Answer» B. To reduce noise figure of TWT

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