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OAT Physics
Chapter 6 - electrostatics
Term | Definition |
---|---|
Coulomb | SI unit of charge |
1 e- | = 1.6E-19 C |
Coulomb's Law | F = kq1q2/r^2 |
k | 9E9 |
E | = F/q |
Etot | = E1 + E2 etc |
Electric fields point towards | negative charges |
V (electric potential) | = W/q = J/C = V = kq/r |
Vtot | = V1 + V2 + etc |
Potential Difference Vb-Va | = Wab/q |
equipotential lines | potential at every point is the same; no work done when both points are on same line |
Electric Potential Energy U | = qV = W = kqq/r |
Electric dipole eq | V = kq1/r1 - kq2/r2 = kq (r2-r1/r1r2) |
dipole moment p = | qd |
Torque | = rFsin theta = rqE sin theta = qdE = pE sin theta |