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: B. 1000

  1. Step 1: The magnetic Lorentz force on a moving charge is defined by .
  2. Step 2: Since velocity is perpendicular to the magnetic field (), , simplifying the equation to .
  3. Step 3: Substitute , , and : .
Answer
1000.
Why not the others: 500 omits magnetic field (); 200 omits charge (); 10 computes omitting velocity .

Practise more Moving charges and magnetism.

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