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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)?

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PERFOMANCE TASK: Electric Fields in a Smokestack Scrubber 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 mot = 1.0x 10-12 kg that travels upward in a smokestack and a charge of qsoot = 1.1 x 1017c. 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 soot particle a collection of many pairs of such plates in parallel) (b) What charge Q on the scrubber's plates is required to produce the electric field in part (a)? Recognize the Principle (How will you find the magnitude of E) sequal to the weight of the particle? (A real scrubber would use Sketch the Probler Identify the Relationships in part (a) : -"The formula" Identify the Relationships in part (a) --- The formula Solution for part (a) Identify the Relationships in part (b) , The formula Solution for part (b) Conclusion:
Transcribed Image Text:PERFOMANCE TASK: Electric Fields in a Smokestack Scrubber 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 mot = 1.0x 10-12 kg that travels upward in a smokestack and a charge of qsoot = 1.1 x 1017c. 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 soot particle a collection of many pairs of such plates in parallel) (b) What charge Q on the scrubber's plates is required to produce the electric field in part (a)? Recognize the Principle (How will you find the magnitude of E) sequal to the weight of the particle? (A real scrubber would use Sketch the Probler Identify the Relationships in part (a) : -"The formula" Identify the Relationships in part (a) --- The formula Solution for part (a) Identify the Relationships in part (b) , The formula Solution for part (b) Conclusion:
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