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Question
A particle with 10−11 coulomb of charge and 10−7 kg mass is moving with a velocity of 108 m/s along the y-axis. A uniform static magnetic field B = 0.5 T is acting along the x-direction. The force on the particle is
A particle with 10−11 coulomb of charge and 10−7 kg mass is moving with a velocity of 108 m/s along the y-axis. A uniform static magnetic field B = 0.5 T is acting along the x-direction. The force on the particle is
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Solution
The correct option is D 5×10−4N along− ^k
By using →F=q(→v×→B) ; where →v=108^j and →B=0.5^i
⇒→F=10−11(108^j×0.5^i)=5×10−4(^j×^i)=5×10−4(−^k)i.e.,5×10−4N along −^k
By using →F=q(→v×→B) ; where →v=108^j and →B=0.5^i
⇒→F=10−11(108^j×0.5^i)=5×10−4(^j×^i)=5×10−4(−^k)i.e.,5×10−4N along −^k
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