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The current in an electron beam in a cathode-ray tube is measured to be 480 mA. How many electrons hit the screen in 2.0 s? (e = 1.6 ´ 10^-19 C)

2.2 ´ 10¹¹ electrons
8.8 ´ 10¹³ electrons
3.5 ´ 10¹⁸ electrons
6.0 ´ 10¹⁸ electrons

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