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€XXX A particle physicist observes that the path of a particle in Earth's magnetic field is a spiral as shown. The particle spirals down and to the right. The magnetic field is directed downwards. (a) Is the particle more likely to be a proton or an electron? Explain (2 marks) (b) Explain how this effect produces the northern and southern lights. (2 marks) An "electrostatic precipitator" is a pollution control device that removes tiny particles from the emissions of coal-burning power plants. It consists of positively charged plates and negatively charged wires as shown in the diagram. The electric field near the wires ionizes the air and creates free electrons which then attach to the harmful particles in the gas. (a) The electric field between the wires and plates in an electrostatic precipitator is about 1.0 x 106 N/C. Assuming this is a uniform electric field and the wire and plate are 10. cm apart, how much electric potential energy would a soot particle with three excess electrons have if it moves from the wire to the plate? (2 marks) (b) What is the electric potential difference between the wire and the plate? (2 marks)

€XXX A particle physicist observes that the path of a particle in Earth's magnetic field is a spiral as shown. The particle spirals down and to the right. The magnetic field is directed downwards. (a) Is the particle more likely to be a proton or an electron? Explain (2 marks) (b) Explain how this effect produces the northern and southern lights. (2 marks) An "electrostatic precipitator" is a pollution control device that removes tiny particles from the emissions of coal-burning power plants. It consists of positively charged plates and negatively charged wires as shown in the diagram. The electric field near the wires ionizes the air and creates free electrons which then attach to the harmful particles in the gas. (a) The electric field between the wires and plates in an electrostatic precipitator is about 1.0 x 106 N/C. Assuming this is a uniform electric field and the wire and plate are 10. cm apart, how much electric potential energy would a soot particle with three excess electrons have if it moves from the wire to the plate? (2 marks) (b) What is the electric potential difference between the wire and the plate? (2 marks)

Glencoe Physics: Principles and Problems, Student Edition
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter26: Electromagnetism
Section: Chapter Questions
Problem 64A
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€XXX A particle physicist observes that the path of a particle in Earth's magnetic field is a spiral as shown. The particle spirals down and to the right. The magnetic field is directed downwards. (a) Is the particle more likely to be a proton or an electron? Explain (2 marks) (b) Explain how this effect produces the northern and southern lights. (2 marks) An "electrostatic precipitator" is a pollution control device that removes tiny particles from the emissions of coal-burning power plants. It consists of positively charged plates and negatively charged wires as shown in the diagram. The electric field near the wires ionizes the air and creates free electrons which then attach to the harmful particles in the gas. (a) The electric field between the wires and plates in an electrostatic precipitator is about 1.0 x 106 N/C. Assuming this is a uniform electric field and the wire and plate are 10. cm apart, how much electric potential energy would a soot particle with three excess electrons have if it moves from the wire to the plate? (2 marks) (b) What is the electric potential difference between the wire and the plate? (2 marks)
Transcribed Image Text:€XXX A particle physicist observes that the path of a particle in Earth's magnetic field is a spiral as shown. The particle spirals down and to the right. The magnetic field is directed downwards. (a) Is the particle more likely to be a proton or an electron? Explain (2 marks) (b) Explain how this effect produces the northern and southern lights. (2 marks) An "electrostatic precipitator" is a pollution control device that removes tiny particles from the emissions of coal-burning power plants. It consists of positively charged plates and negatively charged wires as shown in the diagram. The electric field near the wires ionizes the air and creates free electrons which then attach to the harmful particles in the gas. (a) The electric field between the wires and plates in an electrostatic precipitator is about 1.0 x 106 N/C. Assuming this is a uniform electric field and the wire and plate are 10. cm apart, how much electric potential energy would a soot particle with three excess electrons have if it moves from the wire to the plate? (2 marks) (b) What is the electric potential difference between the wire and the plate? (2 marks)
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