20. The preferred method for applying the field excitation voltage uses a field relay which operates on the principle of
Ar speed application
B. time application
C. thermal application
D. angle application

answer:

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explanation:

answer:

explanation:

assault rifle is a rapid-fire, magazine-fed rifle designed for military use. it is a shoulder-fired weapon that allows the shooter to select between semi-automatic (requiring you pull the trigger for each shot), fully automatic (hold the trigger and the gun continuously fires) or three-shot-burst modes.