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Magnetic fields — Question 19

Original QCE Vault practice · 1 mark

Q19 · Practice questionSimple familiar1 mark

QUESTION 19

An electron moves at 2.0×106 m s−12.0\times10^6\,\text{m s}^{-1} perpendicular to a 0.20 T0.20\,\text{T} magnetic field. What is the magnitude of the magnetic force?
(A)
3.2×10−14 N3.2\times10^{-14}\,\text{N}
(B)
6.4×10−14 N6.4\times10^{-14}\,\text{N}
(C)
1.6×10−13 N1.6\times10^{-13}\,\text{N}
(D)
6.4×10−13 N6.4\times10^{-13}\,\text{N}
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