Question Detail
Question
Which of the following are correct about the acceleration of a charged particle in a uniform electric field? i. For a uniform field, acceleration is constant ii. For a positively charged particle, acceleration is in the direction of the field iii. For a negatively charged particle, acceleration is opposite to the direction of the field iv. Radially outward if the field is negative
Correct Answer
Option D is the correct answer.
Detailed Explanation
a = qE/m. If E is uniform, a is constant (i true). Positive charge -> a parallel to E (ii true). Negative charge -> a antiparallel to E (iii true). Statement iv is meaningless wording ('radially outward' applies to a point charge's field, not to acceleration in a uniform field), so it is excluded.
Hint
a = qE/m.