Problem 22.17 - Enhanced - with Feedback 4of9 ( Charged particles pass through a

Question

Problem 22.17 - Enhanced - with Feedback 4of9 ( Charged particles pass through a velocity selector with electric and magnetic fields at right angles to each other, as shown in the igure (Figure 1). You may want to review (Pages 778-779) Part A If the electric field has a magnitude of 450 N/C and the magnetic field has a magnitude of 0.19 T, what speed must the particles have to pass through the selector undeflected? Express your answer using two significant figures. km/s u= Submit Request Answer Provide Feedback Next> Figure

Explanation / Answer

here,

the magnitude of electric feild , E = 450 N/C

the magnitude of magnetic feild , B = 0.19 T

let the speed of particle be v and charge be q

for the particle to be undeflected

magnetic force = electric force

q * v * B = q * E

v * 0.19 = 450

solving for v

v = 2368 m/s = 2.37 km/s

the speed of particle is 2.37 km/s

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