in a velocity selector , we have an magnetic field (0.025 tesla ) directed out o

Question

in a velocity selector , we have an magnetic field (0.025 tesla ) directed out of the page. we want particles with charge +2 micro coulombs to travel to the left at a constant velocity 1.2 kilometers per second . calculate the magnitude of the required electric field in a velocity selector , we have an magnetic field (0.025 tesla ) directed out of the page. we want particles with charge +2 micro coulombs to travel to the left at a constant velocity 1.2 kilometers per second . calculate the magnitude of the required electric field in a velocity selector , we have an magnetic field (0.025 tesla ) directed out of the page. we want particles with charge +2 micro coulombs to travel to the left at a constant velocity 1.2 kilometers per second . calculate the magnitude of the required electric field

Explanation / Answer

F = qE

F = qvBsintheta

magnetic force is perpendicular to field

qE = qvB

E = vB

v = 1.2 km/s = 1200m/s

B = 0.025 T

E = 1200 * 0.025 = 30 N/C

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