For vacuum tubes the negative grid voltage of smallest magnitude required to make the plate current zero is called:

For vacuum tubes the negative grid voltage of smallest magnitude requi

1.	For vacuum tubes the negative grid voltage of smallest magnitude required to make the plate current zero is called:
A.	Cut-off grid voltage
B.	Minimum grid voltage
C.	Both [a] and [b]
D.	None of these
Answer» C. Both [a] and [b]

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For vacuum tubes the negative grid voltage of smallest magnitude required to make the plate current zero is called:

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