Consider an electron and a negative hydrogen ion (one having an extra electron) accelerated form rest through the same voltage. 1. Find the ratio of the final speed of the electron to the final speed of the hydrogen ion, assuming non-relativistic speeds. Take the mass of the hydrogen ion to be equal to the proton mass, 1.67 × 10–27 kg.

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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.