Question

A). A +5.7 µC charge experiences a 0.60 N force in the positive y direction. If this charge is replaced with a -1.9 µC charge, what force will it experience?

F new = ( ______________ x + _________________)

B). Two point charges lie on the x axis. A charge of + 3.5 µC is at the origin, and a charge of -8.5 µC is at x = 10.0 cm..

(a) What is the net electric field at x = -4.0 cm?

(b) What is the net electric field at x = + 4.0 cm?

C). Honeybees actively foraging in the field have been found to be electrically charged, due largely to air resistance as they fly. The charges carried by a bee, which can be as great as 80. pC, is thought to play a significant role in pollination -- the bee can detach grains of pollen from a distance, like a charged comb attracting bits of paper. Given the force required to detach pollen from an avocado stigma is 4.2 ✕ 10^-10 N, find the maximum distance at which the electrostatic force between a bee and a grain of pollen is sufficient to detach the pollen. Treat the bee and pollen as point charges, and assume that the pollen has a charge opposite in sign and equal in magnitude to the bee.

Answer 1

Force experienced by a charge particle in an uniform electric field