___ is gaseous tube which uses a pool of liquid mercury as its cathode.
A. Thyratron
B. Phanotron
C. Klystron
D. Ignition
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Answer: B
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___ is gaseous tube which uses a pool of liquid mercury as its cathode.
A. Thyratron
B. Phanotron
C. Klystron
D. Ignition
Answer: B
Share your understanding of this question with the correct explanation.