Lesson_2.5_Homework

# Lesson_2.5_Homework - Lesson 2.5 Homework 1 In the Bohr...

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Lesson 2.5 Homework 1. In the Bohr model of the hydrogen atom, the electron orbit closest to the nucleus has a radius of 5.29 × 10 -11 m. (i) Find the electric potential of the proton at the position of the electron. (ii) Calculate the electric potential energy of the electron at this position. 2. A uniform electric field of 2 kN.C -1 is in the x direction. A positive charge q = 3 μ C is released from rest at the origin. (i) What is the potential difference V(4 m) – V(0)?. (ii) What is the change in potential energy of the charge from x = 0 to x = 4 m? (iii) What is the kinetic energy of the charge when it is at x = 4 m. (iv) find the potential V(x) if (a) V(0) = 0, (b) V(1) = 0. 3. A constant electric field E = 5.6 × 10 3 N.C -1 i exists in a region of space. What is the potential difference between the initial point x = 0 and the final point x = 5m? 4. The electric field between two parallel plates connected to a 45-V battery is 1500 V.m -1 . How far apart are the plates?

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## This note was uploaded on 05/01/2011 for the course PHY 2049 taught by Professor George during the Spring '11 term at Edison State College.

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Lesson_2.5_Homework - Lesson 2.5 Homework 1 In the Bohr...

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