A charge of moves at perpendicular to a magnetic field of . What is the magnetic force on it (in N)?

Answer and explanation

Correct answer: C. 500

  1. Step 1: State the formula for the magnetic Lorentz force acting on a moving charge: .
  2. Step 2: Because the velocity is perpendicular to the magnetic field, and , simplifying the equation to .
  3. Step 3: Substitute , , and : .
Answer
500.
Why not the others: The alternative options (5, 1000, 100) result from neglecting fundamental physical conservation laws, misapplying physical constants, or arithmetic calculation slips.

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