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Problem 80 Hard Difficulty

An elcctron is moving at $7.20 \times 10^{6} \mathrm{m} / \mathrm{s}$ in a magnctic ficld of strength 83.0 $\mathrm{mT}$ . What is the (a) maximum and (b) minimum
magnitude of the force acting on the electron due to the field? (c) At one point the electron has an acceleration of magnitude
$4.90 \times 10^{14} \mathrm{m} / \mathrm{s}^{2}$ . What is the angle between the electron's velocity
and the magnetic field?

Answer

(a) $|\vec{F}|_{\max }=9.56 \times 10^{-14} \mathrm{N}$
(b) $|\vec{F}| \min =0 .$
(c) $\phi=0.267^{\circ}$

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Video Transcript

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Kansas State University
Top Physics 102 Electricity and Magnetism Educators
Christina K.

Rutgers, The State University of New Jersey

LB
Liev B.

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Farnaz M.

Simon Fraser University

Meghan M.

McMaster University

Physics 102 Electricity and Magnetism Bootcamp

Lectures

Join Bootcamp