The current in an electron beam in a cathode-ray tube is measured to be 70 µA.How many electrons hit the screen in 5.0 s? (e = 1.6 x 10-19 C)
A) 2.2 x 1011 electrons
B) 8.8 x 1013 electrons
C) 2.2 x 1015 electrons
D) 8.8 x 1018 electrons
Correct Answer:
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