Potential energy and potential midway
An alpha particle (charge+2e, mass 6.63X10^-27 kg) and a proton (charge +e, mass 1.67X10^-27 kg) are separated by 3 micrometers. What is their potential energy? What is the potential midway?
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If 500 J of work are required to carry a charged particle between two points with a potential difference of 20 V, the magnitude of the charge on the particle is:
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