Tong Lectures Volume 2: Electromagnetism

Errata for Electromagnetism

Here are a list of typos that I know about:

Preface

  • Page 1, first paragraph (yeah, not a good start): "is force" -> "is the force"

Chapter 2

  • Page 45: In (2.94), the derivative on the left-hand side should be evaluated at x,y=0, instead of at (x,y,z)=0<\li>
  • Page 56: Last line: "chose" -> "choose"

Chapter 2

  • Page 78: Top line: "rise a" -> "rise to a". Third paragraph "allow for presence" -> "allow for the presence"
  • Page 103: "van der Graaf" -> "Van de Graaff"
    • (I made a mistake in each of his three names, even the one that is just two letters.)

Chapter 4

  • Page 128, Figure 4.2: The right-hand rule means that the electric and magnetic fields should be flipped.

Chapter 7

  • Page 249, below (7.57): "that oscillating" -> "the oscillating"
  • Page 250: The hairy ball theorem only requires that the vector field vanishes at a single point. The symmetry of the problem means that it must vanish at two or more points.
  • Page 250, below (7.61): "which denoted" -> "which is denoted"
  • Page 253: Remove subscript A on the integrals.
  • Page 270, above (7.157): "This means, that" -> "This means that"

Chapter 8

  • Page 278, below (8.8): "natural interpretation" -> "natural interpretations"
  • Page 288, equation (8.48): It should really be kx-\omega t, rather than kx+\omega t in the exponents, but this doesn't change what follows.
  • Page 295: Below (8.97), the n_2>n_1 should be n_1>n_2
  • Page 303, section on Transparent Propagation: "ocurs" -> "occurs"
  • Page 308, below (8.126): "an segment" -> "a segment"
  • Page 333, below (8.229): "at near" -> "near"

Appendix A

  • Page 351: Below (A.44) it should say \dot{x} = (1,1,2t). This factor of 2 also feeds into (A.45), where the final answer should be e-3/10.

Appendix C

  • Page 406: The figure should have + signs instead of - signs
  • Page 416: In equation (C.31), the partial differential of Q should be with respect to x on the right-hand side of the first line, and the integral should be with respect to y in the second line, with integrand Q(a,y) and Q(0,y).

My thanks to Cory Fletcher, Mark Weitzman, and Zhiyu Wang for pointing out some of these.