The electrons that are used in an electron microscope are accelerated through a potential difference of 70 kV.a. Calculate the speed of the electrons using the Newtonian formula for kinetic energy.b. Calculate the speed of the electrons using the relativistic formula for kinetic energy.c. By what factor does the Newtonian result exceed the relativistic result?

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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.