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I Can anybody give me a list of all cross products in physics.

  1. Feb 28, 2017 #1
    Can anybody give me a list of all cross products in physics. I have the following in my list:

    Torque
    $$\vec{\tau}=\vec{F}\times\vec{r}$$
    Angular momentum
    $$\vec{L}=\vec{r}\times\vec{p}$$
    Velocity
    $$\vec{v}=\vec{\omega}\times\vec{r}$$
    Biot-Savart law
    $$\vec{dB}=\dfrac{\vec{i dl}\times\hat{r}}{r^{2}}$$
    Lorentz force law
    $$\vec{F_{B}}=\vec{v}\times\vec{B}$$
    Poynting vector
    $$\vec{S}=\vec{E}\times\vec{H}$$

    Can anybody help me in increasing this list as much as possible.

    Please not that I am not talking about the curl operator

    (My guess is there there may be at least 50 different cross products in all of physics)
     
  2. jcsd
  3. Feb 28, 2017 #2
    Are you counting the cross product as a computational aid in dealing with physical bodies, or are you just interested in occurrences in physical laws? A small list of the former, but enough to get an idea, is presented in https://en.wikipedia.org/wiki/Cross_product#Applications
     
  4. Feb 28, 2017 #3
    Are you counting curl as a cross product?
    ##\nabla \times \mathbf{v}##
    There's a fair number of those. For example, Maxwell's equations and vorticity.
     
  5. Feb 28, 2017 #4

    Vanadium 50

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