A proton, mass 1.67 * 10 ^- ²⁷kg and charge +1.6 *10 ^- ¹⁹ C, moves in a circular orbit perpendicular to a uniform magnetic field of 0.50 T. Find the time for the proton to make one complete circular orbit. A) 8.7 *10 ^- ⁸ s B) 1.3 *10 ^- ⁷ s C) 9.8 *10 ^- ⁷ s D) 4.3 *10 ^- ⁸ s

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Quizplus · Accepted Answer

The time for one complete orbit (the period) is given by T = 2πm/(qB). Substituting the given values: m = 1.67 × 10^-27 kg, q = 1.6 × 10^-19 C, and B = 0.50 T, we find T ≈ 1.3 × 10^-7 s.

A Proton, Mass 1