Problem

Shocking your friend (a) You shuffle across the rug and then place your finger near...

Shocking your friend (a) You shuffle across the rug and then place your finger near your friend’s nose, causing a small spark that transfers about 10-9 C of charge from you to your friend. Determine the number of electrons transferred. (b) Estimate the fraction of electrons in your body that were transferred to the friend. Note that the electron mass is about 1/20,000 the mass of the atom—the nuclei are much more massive—and the mass of an average atom in the body is about 2 X 10-26 kg. (Note: Don’t get hung up on minutia— this is a rough estimate.)

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