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The speed at which axial electric field due to signal advances in a TWT is equal to | |
A. | speed of light [Wrong Answer] |
B. | (speed of light) (helix pitch helix circumference) [Correct Answer] |
C. | (speed of light) (helix circumference helix pitch) [Wrong Answer] |
D. | (speed of light) (helix pitch) (helix circumference) [Wrong Answer] |