A dust particle of charge, q, and mass, m, is initially at rest in a uniform electric field with strength of magnitude, E. If the dust particle is then allowed to move freely, how long will it take for the particle to travel a distance, d, in a straight line? (Ignore gravity) a. (md/2qE)1/2  b. (2qEd/m)1/2  c. (qE/2md)1/2  d. (md/qE)1/2  e. (2md/qE)1/2

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.