Post Utme Aaua 2020 Physics Question 30

Practice objective / multiple choice question 30 from the 2020 Post Utme Aaua Physics examination.

Post Utme Aaua 2020 Physics Objective / Multiple Choice
Question 30 POST_UTME_AAUA • 2020 • PHYSICS • objective

A particle of mass $m$ is moving in a circular orbit of radius $r$ with a speed $v$. If the particle is subjected to a uniform magnetic field of strength $B$, what is the radius of the new orbit when the particle's speed is doubled?

Answer Options

A. \frac{mv}{2qB}
B. \frac{2mv}{qB}
C. \frac{mv}{qB}
Correct Answer D. \frac{4mv}{qB}
Correct Answer
D
Correct Option:
\frac{4mv}{qB}

About This Question

This is Post Utme Aaua 2020 Physics Question 30. It is one of the objective questions from the 2020 Post Utme Aaua Physics examination.

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