Magnetic field due to currentHard
Question
A particle of charge q and mass m starts moving from the origin under the action of an electric field 
= E0 î and 
= B0î; with velocity 
= v0 ĵ. The speed of the particle will become 2v0 after a time
= E0 î and = B0î; with velocity = v0 ĵ. The speed of the particle will become 2v0 after a time Options
A.t = 
B.t = 
C.t = 
D.t = 
= 2v0 = t 
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