Problem: Smokestack scrubber removes undesirable particles by first adding some excess electrons and then using electric forces to pull the particles out of the air. Consider a scot particle of mass mg = 1.0x 101 kg that travels upward in a smokestack and a charge of qeot = 1.1 x 10C. Assume the electric field in the scrubber is produced by two parallel, square plates of width L=1.0 m and separation d = 0.010 m, with charges (a) What must be the value of the electric field between the plates so that the force on the scot particle is equal to the weight of the particle? (A real scrubber would use a collection of many pairs of such plates in paralle) (b) What charge Q on the scrubber's plates is required to produce the electric field in part (a)?

Problem: Smokestack scrubber removes undesirable particles by first adding some excess electrons and then using electric forces to pull the particles out of the air. Consider a scot particle of mass mg = 1.0x 101 kg that travels upward in a smokestack and a charge of qeot = 1.1 x 10C. Assume the electric field in the scrubber is produced by two parallel, square plates of width L=1.0 m and separation d = 0.010 m, with charges (a) What must be the value of the electric field between the plates so that the force on the scot particle is equal to the weight of the particle? (A real scrubber would use a collection of many pairs of such plates in paralle) (b) What charge Q on the scrubber's plates is required to produce the electric field in part (a)?