AP® Physics 1 & 2

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Crossed Electric and Magnetic Fields: Determine Magnitude

APPH12-HZEEZZ

Created for Albert.io. Copyright 2017. All right reserved.

A $+5\text{ mC}$ particle moves to the right undeflected at $4{,}000\text{ m/s}$ between two charged plates, where there exists an electric field directed down the page, and also a magnetic field directed into the page.

If the electric field between the plates has a magnitude of $2{,}000\text{ N/C}$, how strong is the magnetic field?

A

$0.5\text{ T}$

B

$2\text{ T}$

C

$100\text{ T}$

D

$8{,}000{,}000\text{ T}$