Mass of an electron: 9.11 x 10^-31 kg

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SUMMARY

The mass of an electron is established as 9.11 x 10^-31 kg. When a body accumulates a static charge of -10 microcoulombs, it acquires approximately 6.2 x 10^13 excess electrons. To find the collective mass of these electrons, one must multiply the number of electrons by the mass of a single electron. The resulting mass can be expressed in grams using two significant figures.

PREREQUISITES
  • Understanding of microcoulombs and their conversion to charge.
  • Knowledge of the mass of an electron (9.11 x 10^-31 kg).
  • Basic arithmetic for multiplication and unit conversion.
  • Familiarity with scientific notation.
NEXT STEPS
  • Research the concept of static electricity and charge accumulation.
  • Learn about the calculation of mass from charge using the electron mass.
  • Explore scientific notation and its applications in physics.
  • Investigate the effects of static electricity in everyday scenarios.
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Students in physics, educators teaching static electricity concepts, and anyone interested in the fundamental properties of electrons and charge interactions.

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On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair.
If your body develops a charge of -10 (microcoulombs), how many excess electrons has it acquired?

N=6.2*10^13 electrons



What is their collective mass?
Express your answer using two significant figures.

m=_____g
 
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