Recent content by Bright Liu

  1. Bright Liu

    How do I derive this vector calculus identity?

    ##(\nabla\times\vec B) \times \vec B=\nabla \cdot (\vec B\vec B -\frac 1 2B^2\mathcal I)-(\nabla \cdot \vec B)\vec B## ##\mathcal I## is the unit tensor
  2. Bright Liu

    Using nodal analysis to solve for current

    I think you are right and the answer is wrong
  3. Bright Liu

    Using nodal analysis to solve for current

    I think he has defined this node as ground node
  4. Bright Liu

    Simplifying Complex Circuits: Using Delta to Y Transformation

    Maybe you can solve it like this （In China we called it Current distribution method ）
  5. Bright Liu

    How Does a Math Degree Enhance Understanding of Physics?

    Mathematics is important in physics I think
  6. Bright Liu

    Exploring the World of Physics: A Warm Welcome to PhysicsForums!

    ：凉：
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