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PhysicsJEE Main 2 Apr 2026, Shift 2·Q4·MCQ·Easy–moderate

Moving Charges and Magnetism · Magnetic force

A particle having charge 10−910^{-9} C moving in xx–yy plane in fields of 0.4 ȷ^0.4\,\hat{\jmath} N/C and 4×10−3 k^4\times10^{-3}\,\hat{k} T experiences a force of (4ı^+2ȷ^)×10−10\left(4\hat{\imath} + 2\hat{\jmath}\right)\times10^{-10} N. The velocity of the particle at that instant is m/s.
  1. (1)50ı^+100ȷ^50\hat{\imath} + 100\hat{\jmath}
  2. (2)100ı^+50ȷ^100\hat{\imath} + 50\hat{\jmath}
  3. (3)−50ı^+100ȷ^-50\hat{\imath} + 100\hat{\jmath}
  4. (4)50ı^−100ȷ^50\hat{\imath} - 100\hat{\jmath}
We corrected a printing error in the original paper

Source printed the magnetic field as “4×10−3 k4\times10^{-3}\ k T” (unit vector kk without a hat).

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See the full 2 Apr 2026, Shift 2 paper

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