Homework Help: physics

Posted by saffa on Friday, November 25, 2011 at 6:42am.

ina cathode ray tube a beam of electron can be moved up and down by changing the poential difference of_____.
a) X-plates
b) cathode
c) Y-plates
d) both X and cathodes

physics - drwls, Friday, November 25, 2011 at 7:30am
c) (assuming Y is the "up" direction)

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