An electron moves through a uniform magnetic field B=B_0i+2B_0jT. At a particular instant of time, the velocity of electron is u=3i+5jm/s. If the magnetic force acting on electron is F=5 ekN, where e…

Question

An electron moves through a uniform magnetic field B=B_0i+2B_0jT. At a particular instant of time, the velocity of electron is u=3i+5jm/s. If the magnetic force acting on electron is F=5 ekN, where e is the charge of electron, then the value of B_0 is______ T.

Accepted Answer

Correct answer: 5. (5) F=q (v B ) 5ek=e (3i+5ȷ ) (B_0ı+2 B_0ȷ) 5 ek=e(6 B_0k-5 B_0k) ⇒B_0=5 T

$An electron moves through a uniform magnetic field B = B_{0} i + 2 B_{0} j T . At a particular instant of time, the velocity of electron is u = 3 i + 5 j m / s . If the magnetic force acting on electron is F = 5 ekN, where e is the charge of electron, then the value of B_{0} is______ T.$

Solution

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