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In a cathode-ray tube (CRT), an electron travels in a vacuum and enters a region between two deflection plates which have equal and opposite charges.

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In a cathode-ray tube (CRT), an electron travels in a vacuum and enters a region between two "deflection" plates which have equal and opposite charges. The dimensions of each plate are L = 11 cm by d = 4 cm, and the gap between them is h = 2.5 mm. (Note: the diagram is not drawn to scale and the direction of the electric field may not be correct, depending on your randomization.) l. 77777777777777 1': i _ _ III 0 ' E | l' During a 0.001 s interval while it is between the plates, the change of the momentum of the electron AB is kg m/s. What is the electric eld Jetween the plates? Hint: remember the Momentum Principle (the relationship between Impulse and change in momentum.) E = (0, , 4.49e4,0) N/C x What is the charge (both magnitude and Sign) of the upper plate? Additional Materials

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