MODULE 4.1 ELECTRICITY INTERACTION BETWEEN CHARGES “Electricity is the Soul of the Universe” John Wesley (1703 – 1791) Questions and Problems Charge is an intrinsic property of the fundamental particles – the electron and the proton. Electrons repel electrons Protons repel protons Electrons and protons attract each other. This property, charge, gives rise to all electrical forces. By convention, the electron is said to be negatively charged and the proton positively charged. q Q Charge: or S.I. unit: coulomb [ C ] e elementary charge = 1.6x10-19 C 1 C = 6.28x1018 electrons - e charge on an electron e charge of a proton +
MODULE 4.1 ELECTRICITY INTERACTION BETWEEN CHARGES “Electricity is the Soul of the Universe” John Wesley (1703 – 1791) Questions and Problems Charge is an intrinsic property of the fundamental particles – the electron and the proton. Electrons repel electrons Protons repel protons Electrons and protons attract each other. This property, charge, gives rise to all electrical forces. By convention, the electron is said to be negatively charged and the proton positively charged. Charge: q or Q S.I. unit: coulomb [ C ] elementary charge e = 1.6x10-19 C 1 C = 6.28x1018 electrons charge on an electron - e charge of a proton + e