Questions
A particle with charge -5.60 nC is moving in a uniform magnetic field . The magnetic force on the particle is measured to be . Calculate one of the components of velocity of the particle from this information.
detailed solution
Correct option is A
Let velocity of the particle is v→=vxi^+vyj^+vzk^Then F→=qv→×B→ ⇒ −3.36×10−7i^+7.42×10−7j^=−5.6×10−9vxi^+vyj^+vzk^×(−1.25)k^ ⇒ −3.36i^+7.42j^=7×10−2−vxj^+vyi^ ⇒ vx=−7.42×1027=−106 ms−1And ⇒ vy=−3.36×1027=−48 ms−1.Talk to our academic expert!
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