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November 20, 2014

Homework Help: Physics

Posted by Landon on Tuesday, May 26, 2009 at 10:23am.

A beam of unknown charged particles passes at right angle to the direction of magnetic field of 9.0 10-2 T. If the speed of the particles is 3.0 104 m/s and force experienced by a particle is 8.64 10-16 N, how many electric charges are carried by one particle?

{Force} = F = {Charge}*{Velocity}*{Magnetic Field Strength} = Q*V*B

----> {Charge} = Q = F/(V*B)

----> {Charge} = (8.64e-16)/((3.0e+4)*(9.0e-2))

----> {Charge} = 3.2e-19 Coulombs

----> {# Electric Charges} = {Charge}/(1.6e-19)

----> {# Electric Charges} = (3.2e-19)/(1.6e-19)

----> {# Electric Charges Per Particle} = 2

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