S97(2) - Physics 4B THIRD EXAM Chapters 22 - 32 Spring 1997...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Physics 4B THIRD EXAM Chapters 22 - 32 Spring 1997 Name:_________________________________________ Solve the following problems in the space provided. Use the back of the page if needed. Each problem is worth 20 points. You must show your work in a logical fashion starting with the correctly applied physical principles which are on the last page. Your score will be maximized if your work is easy to follow because partial credit will be awarded. 1. An electron is traveling northward at 3.20x10 6 m/s near Chico where the magnetic field of Earth is northward and has a magnitude of 52.0μT at 62˚ below the horizontal. (a)Find the horizontal component of the field and (b)the vertical component of the field. (c)Find the magnitude and direction of the force exerted on the electron by the horizontal component of the field and (d)the vertical component of the field. (a)Taking the vector components, B h = Bcos θ = 52.0cos62˚ = 24.4 μ T (b) and B v = Bsin θ = 52.0sin62˚ = 45.9 μ T . (c)The force on a moving charge is, r F = q r υ× r B since the velocity is in the same direction as this component of the field, the force due to this component is zero .
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/11/2012 for the course PHYSICS 204B taught by Professor Staff during the Fall '09 term at CSU Chico.

Page1 / 3

S97(2) - Physics 4B THIRD EXAM Chapters 22 - 32 Spring 1997...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online