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In a TV picture tube the accelerating voltage is 17.0 kV, and the electron beam passes...

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Physics

In a TV picture tube the accelerating voltage is 17.0 kV, andthe electron beam passes through an aperture 0.40 mm in diameter toa screen 0.230 m away. What is the uncertainty in position of thepoint where the electrons strike the screen?

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4.0 Ratings (586 Votes)
Each electron has a chargeof e160217657 1019C and the accelerating voltagewhich is actually the potential difference between the filamentand the anode in the TV is 17000 voltsThe electric energy that is transferred to the electrons can beexpressed aseV 1602 1019 C x 17000 V2723 1015 J note that the product C V    See Answer
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