The current in an electron beam in a cathode-ray tube is measured to be 80 A. The
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Question:
The current in an electron beam in a cathode-ray tube is measured to be 80 μA. The number of electrons that hit the screen is 8 s is:
a) 2 × 1015
b) 3 × 1015
c) 4× 1015
d) 6 × 1015
Related Book For
Physics For Scientists And Engineers A Strategic Approach With Modern Physics
ISBN: 9780321740908
3rd Edition
Authors: Randall D. Knight
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