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4. Moving charges and magnetism — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics4. Moving charges and magnetism1 Mark
MCQ
Acharged particle enters a uniform magnetic field perpendicular to its initial direction travelling in air. The path of the particle is seen to follow the path in figure. Which of statements $1-3$ is/are correct?

$[1]$ The magnetic field strength may have been increased while the particle was travelling in air

$[2]$ The particle lost energy by ionising the air

$[3]$ The particle lost charge by ionising the air

  • A
    $1, 2, 3$ are correct
  • ✓
    $1, 2$ only are correct
  • C
    $2, 3$ only are correct
  • D
    $1$ only
✓

Answer

Correct option: B.
$1, 2$ only are correct
b

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