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I. Area of cross section3. LengthThe number of electrons strinking the screen of CRT is 7.5 x 10"s in IOs. Calculatethe electric current2. Material and temperature4. All1.60μΑ2. 120μΑ3, 180LA4, 200pAumbe ofelectrons nassing per sec |
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Answer» Current ischarge/time Charge =7.5*10^15*e Therefore current =1.6*10^-19*7.5*10^15/10 |
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