A uniformly charged disk has radius R=2 cm and surface charge density o=4 C/m2. Calculate the electric potential at a point x-9 cm along the perpendicular central axis of the disk. (Take k=9x10°.) Your result must be in multiples of 107 Volts and include one digit after the decimal point. That means if, for example, you get a result of a 9.2 x 107 just type 9.2 in the answer box. Maximum of 4% of error is accepted in your answer. R dA = 2r dr

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A uniformly charged disk has radius R=2 cm and surface charge density o=4 C/m2. Calculate the electric
potential at a point x-9 cm along the perpendicular central axis of the disk. (Take k=9x10°)
Your result must be in multiples of 10 Volts and include one digit after the decimal point. That means if, for
example, you get a result of a 9.2 x 10 just type 9.2 in the answer box. Maximum of 4% of error is accepted in
your answer.
V+x
dA = 2r dr
dr
Transcribed Image Text:A uniformly charged disk has radius R=2 cm and surface charge density o=4 C/m2. Calculate the electric potential at a point x-9 cm along the perpendicular central axis of the disk. (Take k=9x10°) Your result must be in multiples of 10 Volts and include one digit after the decimal point. That means if, for example, you get a result of a 9.2 x 10 just type 9.2 in the answer box. Maximum of 4% of error is accepted in your answer. V+x dA = 2r dr dr
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