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Magnetics question

2020 · 3 Sep · Shift 1 · Q61
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Magnetics question

2020 · 3 Sep · Shift 1 · Q61

JEE MainPhysicsMagneticsMCQ+4 / −1
A charged particle carrying charge 1 μ\muμ C is moving with velocity (2i^+3j^+4k^)\left( {2\widehat i + 3\widehat j + 4\widehat k} \right)(2i+3j​+4k) ms–1. If an external magnetic field of (5i^+3j^−6k^)\left( {5\widehat i + 3\widehat j - 6\widehat k} \right)(5i+3j​−6k)× 10–3 T exists in the region where the particle is moving then the force on the particle is F→\overrightarrow FF× 10–9 N. The vector F→\overrightarrow FF is :
  1. A
    −0.30i^+0.32j^−0.09k^{ - 0.30\widehat i + 0.32\widehat j - 0.09\widehat k}−0.30i+0.32j​−0.09k
  2. B
    −300i^+320j^−90k^{ - 300\widehat i + 320\widehat j - 90\widehat k}−300i+320j​−90k
  3. C
    −30i^+32j^−9k^{ - 30\widehat i + 32\widehat j - 9\widehat k}−30i+32j​−9k
  4. D
    −3.0i^+3.2j^−0.9k^{ - 3.0\widehat i + 3.2\widehat j - 0.9\widehat k}−3.0i+3.2j​−0.9k
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