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