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An electron has a velocity of 6.0  106 m/s in the positive x-direction at a point where the magnetic field has the components Bx = 3.0 T, By = 1.5 T, and Bz = 2.0 T. What is the magnitude of the acceleration of the electron at this point? [Charge of an e = -1.602  10-19 C and mass of an e =9.31  10-31 kg]

Answer :

The answer is 2.65*10^18 m/s^2

The step-wise calculation is-

a=Fb/me

=e(vXB)/me

=−1.6*10^−19(6.0*10i×(3i+1.5j+2k))/9.1*10^−31

=−1.05*10^18(1.5k−2j)

Now, |a|=1.05*10^18√1.5^2+(−2)^2=2.65*10^18 m/s^2

How do you find the acceleration of a particle in a magnetic field?

  • The acceleration of a particle in a circular orbit is: Using F = ma,
  • Thus the radius of the orbit depends on the particle's momentum, mv, and
  • the product of the charge and strength of the magnetic field.

Magnetic field magnitude = (permeabilityoffreespace)/(currentmagnitude)2π(distance)

Learn more about the acceleration of a particle in a magnetic field here

https://brainly.com/question/13071836

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The magnitude of the acceleration of the electron at this point  |a| = 2.64*10^18 m/sec^2

Given electron velocity = v = 6.0 * 10 ^ 6 m / sec. In the positive x direction, therefore v = 6 * 10 ^ 6 i

, that is, magnetic field = B = Bx i + By j + Bz k

B = 3.0 i + 1.5 j + 2.0 k

Now, The force applied to the electrons in the magnetic field is given by

Fm = q * (vXB)

Here, q = electron charge = 1.602 * 10 ^ -19 C

From Newton's law,

Fnet = m * a

Fm = m * a

Given m = electron mass = 9.1 * 10 ^ -31 kg

a = Acceleration = ??

Therefore, a = Fm / m = (q / m) * (vXB) = [(1.602 * 10 ^ -19) / (9.1 * 10 ^ -31)] * [(6.0 * 10 ^ 6) X (3.0i + 1.5j + 2.0k)]

a = [(1.602 * 10 ^ -19) / (9)

1 * 10^-31)] * [18.0 * 10^6 (ixi) + 9.0 * 10^6 (ixj) + 12.0 * 10^6 (ixk)]

Da, ixi = 0

ixj = k

ixk = -j

So a = [(1.602 * 10^-19) / (9.1 * 10^-31)] * [9.0 * 10^6 k-12, 0 * 10^6 j]

a = - [(1.602 * 10^-19) / (9.1 * 10^-31)] * 12 * 10^6 j + [(1.602 * 10^-19) / (9.1 * 10^-31)] * 9 * 10^6 k

a = -2.11 * 10^18 j + 1.58 * 10^18 k

So the acceleration magnitude = |a| = sqrt[(2.11 * 10^18)^2 + ( 1.58*10^18)^2]

|a| = 2.64*10^18 m/sec^2

Learn more about acceleration magnitude here:https://brainly.com/question/1597065

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