阿摩線上測驗
3. An electron travels in a uniform magnetic field directed perpendicular to its path. Which of the following quantity of the electron will change?
(A) Its speed.
(B) Its potential energy.
(C) Its kinetic energy.
(D) Its acceleration.
(E) All of the above.
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統計： A(3), B(0), C(0), D(12), E(7) #3084462
統計： A(3), B(0), C(0), D(12), E(7) #3084462
