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October 20, 2014

Homework Help: Physics

Posted by Mary on Sunday, September 2, 2007 at 9:14am.

The anode (positive terminal) of an X-ray tube is at a potential of +115 000 V with respect to the cathode (negative terminal).

(a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode?

(b) If the electron is initially at rest, what kinetic energy does the electron have when it arrives at the anode?

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