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MODEL PAPER 8 — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMODEL PAPER 81 Mark
MCQ
Assertion (A): Force experienced by moving charge will be maximum if direction of velocity of charge is perpendicular to applied magnetic field.
Reason (R): Force on moving charge is independent of direction of the applied magnetic field.
  • A
    Both A and R are true and R is the correct explanation of A.
  • B
    Both A and R are true but R is not the correct explanation of A.
  • C
    A is true but R is false.
  • D
    A is false but R is true.
✓

Answer

(c) A is true but R is false
Explanation: From equation $F = qvB \sin \theta$
Force on moving charge will be maximum if the direction of the velocity of charge is perpendicular to direction of magnetic
field (when $\theta=90^{\circ}$ )

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