問題詳情
12.tUnder what condition does the magnetic force on a charged particle perform work?
(A)tWhen the particle moves parallel to the magnetic field.
(B)tWhen the particle moves perpendicular to the magnetic field.
(C)tWhen the particle moves at an angle to the magnetic field.
(D)tWhen lhe magnetic field is non-uniform.
(E)None of tiie above.
參考答案
答案：E
統計：A:0,B:1,C:0,D:0,E:0
難度：計算中