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An electron is to be accelerated from a velocity of 1.50x105 m/s to a velocity of 9.00x105 m/s. Through what potential difference must the electron pass to accomplish this?

An electron is to be accelerated from a velocity of 1.50x105 m/s to a velocity of 9.00x105 m/s. Through what potential difference must the electron pass to accomplish this?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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▼ Part A An electron is to be accelerated from a velocity of 1.50x106 m/s to a velocity of 9.00x106 m/s. Through what potential difference must the electron pass to accomplish this? Vinitial - Vfinal = -224 V Submit ✓ Correct Set Up: Apply conservation of energy, Eq. (18.3). Use Eq. (18.10) to express U in terms of V. Solve: K₁+qV₁ = K₂ +qV₂ Previous Answers q(V₁ V₂) = K2 - K₁iq=-1.602 × 10-¹⁹ C K₁ = mv² = 3.69 × 10-¹7J; K₂ = 1/mev² = 1.02 × 10-¹8 J V₁ V₂ = K₂-K₁ 9 Reflect: The electron gains kinetic energy when it moves to higher potential. Part B - = -224V Through what potential difference must the electron pass if it is to be slowed from 9.00x106 m/s to a halt? Vinitial - Vfinal = 1971 ΑΣΦ - 172.76 Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining ? V
Transcribed Image Text:▼ Part A An electron is to be accelerated from a velocity of 1.50x106 m/s to a velocity of 9.00x106 m/s. Through what potential difference must the electron pass to accomplish this? Vinitial - Vfinal = -224 V Submit ✓ Correct Set Up: Apply conservation of energy, Eq. (18.3). Use Eq. (18.10) to express U in terms of V. Solve: K₁+qV₁ = K₂ +qV₂ Previous Answers q(V₁ V₂) = K2 - K₁iq=-1.602 × 10-¹⁹ C K₁ = mv² = 3.69 × 10-¹7J; K₂ = 1/mev² = 1.02 × 10-¹8 J V₁ V₂ = K₂-K₁ 9 Reflect: The electron gains kinetic energy when it moves to higher potential. Part B - = -224V Through what potential difference must the electron pass if it is to be slowed from 9.00x106 m/s to a halt? Vinitial - Vfinal = 1971 ΑΣΦ - 172.76 Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining ? V
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