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Electromagnetism

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Question 4

In a certain region of space, the magnetic flux density B B\,B is approximately 50 μT50\ \mu\text{T}50 μT.

What is the magnitude of the force on a proton with velocity v=250 km s−1v = 250\ \text{km s}^{-1}v=250 km s−1 as it is moving perpendicular to this magnetic field? (The charge of a proton is 1.6 × 10-19 C)

A

2.0×10−24 N2.0 \times 10^{-24}\ \text{N}2.0×10−24 N

B

2.0×10−21 N2.0 \times 10^{-21}\ \text{N}2.0×10−21 N

C

2.0×10−18 N2.0 \times 10^{-18}\ \text{N}2.0×10−18 N

D

2.0×10−15 N2.0 \times 10^{-15}\ \text{N}2.0×10−15 N

Markscheme

Electromagnetism Questions

  1. A Level
  2. /Physics
  3. /Electromagnetism

34 exam-style questions on OCR A A Level Physics Electromagnetism, covering Magnetic fields, Motion of charged particles, and Electromagnetism. Each one has a worked solution and a mark scheme showing where the marks go.

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