(a) What is the potential difference between two points that are 1.30 m and 2.75
ID: 1651537 • Letter: #
Question
(a) What is the potential difference between two points that are 1.30 m and 2.75 m from a proton? (b) What is the radius of the 1.45 V equipotential surface of a proton? An electron and a proton each have 13.4 eV of kinetic energy. Calculate the speed of each. Two metal balls of opposite charge (each 6.00 times 10^-7 C) have the equipotential lines shown. A proton is released from point O. Where does it go (indicate letter) and how fast does it go there? If you need to determine distances do so to the nearest millimeter. (a) Sketch the electric field lines around an isolated positive point charge of charge 2Q. (b) Sketch the electric field lines around an isolated point charge of magnitude -4Q. (c) Assume the charges of part (a) and (b) are brought close together. Now sketch the electric field lines.Explanation / Answer
Solving first question of the page
Q5
Potential=k*q/r
potential difference=kq(1/1.3-1/2.75)
potential diference=5.84*10^(-10) volts
(b)ke/r=1.45
we got r=9.93*10^(-10) m =9.93 angstrom
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