Exam-style Questions: Magnetic Fields

  1. What is the force acting on an electron at rest in a horizontal magnetic field of strength 0.04T?

    (Charge on an electron, e = 1.6x10-19C)

    1. Zero
    2. 0.04N
    3. 1.6 x 10-19N
    4. 6.4 x 10-21N

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