physics quiz from upload

What is the charge of an electron?

• +1.60×10^-19 C

• -1.60×10^-19 C

• +1.60×10^-20 C

• -1.60×10^-20 C

What is the charge of a proton?

• -1.60×10^-20 C

• +1.60×10^-20 C

• -1.60×10^-19 C

• +1.60×10^-19 C

What is the charge of an electron in terms of the elementary charge e?

• -e

• +e

• -2e

• +2e

What is the charge of a proton in terms of the elementary charge e?

• -2e

• +e

• +2e

• -e

What is the mass of an electron?

• 9.1094×10^-31 kg

• 1.6022×10^-19 kg

• 1.6022×10^-19 g

• 9.1094×10^-28 kg

What is the permittivity constant in Coulomb's law?

• 1.602×10^-19 C

• 6.022×10^23 mol^-1

• 8.85419×10^-12 C^2/N·m^2

• 8.9876×10^9 N·m^2/C^2

What is the magnitude of the force between two point charges separated by a distance of 12.0 cm if one charge is +3.00×10^-6 C and the other is -1.50×10^-6 C?

• 2.81 N

• 3.00 N

• 4.00 N

• 5.00 N

What is the total charge of 75.0 kg of electrons?

• 1.32×10^13 C

• -1.32×10^13 C

• -1.60×10^-19 C

• 1.60×10^-19 C

How many electrons would have to be removed from a penny to leave it with a charge of +1.0×10^-7 C?

• 7.3×10^-13

• 8.55×10^23

• 1.16×10^-5

• 6.2×10^11

What must be the distance between point charges of +26.0μC and -47.0μC for the electrostatic force between them to have a magnitude of 5.70 N?

• 2.00 m

• 1.39 m

• 1.93 m

• 2.50 m