A body has a charge of −2μC. If it has 2.5×10^12 protons, then how many electrons the body has?
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Answer:
Explanation:
Total charge on the body equals the difference of charge due to protons and charge due to electrons.
-2× 10^-6 = (2.5×10^12- n) × 1.6 ×10^-19
n = 3.75 × 10 ^12
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