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23 Nov 2019
Two facing surfaces of two large parallel conductingplatesseparated by 11.5 cm haveuniform surface charge densitiessuch that are equal in magnitudebut opposite in sign. Thedifference in potential between theplates is 600 V.
(a) Is the positive or the negative plate at thehigherpotential?
thepositive platethenegative plate
(b) What is the magnitude of the electric field betweentheplates?
kV/m
(c) An electron is released from rest next to the negativelychargedsurface. Find the work done by the electric field on theelectron asthe electron moves from the release point to thepositive plate.Express your answer in both electron volts andjoules.
eV
J
(d) What is the change in potential energy of the electron whenitmoves from the release point to the positive plate?
eV
(e) What is its kinetic energy when it reaches thepositiveplate?
eV
Two facing surfaces of two large parallel conductingplatesseparated by 11.5 cm haveuniform surface charge densitiessuch that are equal in magnitudebut opposite in sign. Thedifference in potential between theplates is 600 V.
(a) Is the positive or the negative plate at thehigherpotential?
(b) What is the magnitude of the electric field betweentheplates?
kV/m
(c) An electron is released from rest next to the negativelychargedsurface. Find the work done by the electric field on theelectron asthe electron moves from the release point to thepositive plate.Express your answer in both electron volts andjoules.
eV
J
(d) What is the change in potential energy of the electron whenitmoves from the release point to the positive plate?
eV
(e) What is its kinetic energy when it reaches thepositiveplate?
eV
thepositive platethenegative plate
(b) What is the magnitude of the electric field betweentheplates?
kV/m
(c) An electron is released from rest next to the negativelychargedsurface. Find the work done by the electric field on theelectron asthe electron moves from the release point to thepositive plate.Express your answer in both electron volts andjoules.
eV
J
(d) What is the change in potential energy of the electron whenitmoves from the release point to the positive plate?
eV
(e) What is its kinetic energy when it reaches thepositiveplate?
eV
