A magnetic field is used in the cavity magnetron to:

1.	A magnetic field is used in the cavity magnetron to:
A.	Prevent anode current in the absence of oscillations
B.	Ensure that the oscillations are pulsed
C.	Help in focusing the electron beam, thus preventing spreading
D.	Ensure that the electrons will orbit around the cathode
Answer» E.

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A magnetic field is used in the cavity magnetron to:

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