"The radius of curvature of an electrode determines the magnitude of E just outside of it....
"The radius of curvature of an electrode determines the magnitude of E just outside of it. A sharp point has a tiny radius of curvature, a flat surface has an infinite radius."
Could someone tell me what these sentences above mean please?
Also, is electric field stronger just outside a curved or a flat surface?
Homework Answers
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"The radius of curvature of an electrode determines the
magnitude of E just outside of it....
2. +-/0.55 points Tipler6 23.P040 +10-6 C is uniformly distributed on a spherical shell of radius 18 cm. (a) What is the magnitude of the electric field just outside and just inside the shell? A c...
2. +-/0.55 points Tipler6 23.P040 +10-6 C is uniformly distributed on a spherical shell of radius 18 cm. (a) What is the magnitude of the electric field just outside and just inside the shell? A charge of q kV/m (outside) kV/m (inside) (b) What is the magnitude of the electric potential just outside and just inside the shell? V (outside) V (inside) (c) What is the electric potential at the center of the shell? What is the electric field at...
A spherical shell of radius 1m and a flat, square sheet that is 1m long on...
A spherical shell of radius 1m and a flat, square sheet that is 1m long on each edge both have a surface charge density of 1 C/m2. At a point 1mm outside the sphere or 1mm away from the surface of the sheet, how do the electric field strengths compare? 1) The field of the sphere is stronger 2)The field strengths are equal 3) The field of the sheet is stronger
In the figure a small circular hole of radius R = 2.23 cm has been cut...
In the figure a small circular hole of radius R = 2.23
cm has been cut in the middle of an infinite, flat, nonconducting
surface that has a uniform charge density σ = 4.23 pC/m2. A zaxis,
with its origin at the hole's center, is perpendicular to the
surface. What is the magnitude of the electric field at point P at
z = 2.79 cm?
MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION BACK NEXT In the figure a small circular...
Select Tru or False. 1. A conducting sphere with charge Q at equilibrium has zero E...
Select Tru or False. 1. A conducting sphere with charge Q at equilibrium has zero E field inside it. The E field outside is the same as that of a point charge Q, E=keQ/r2. The potential outside it is the same as that of a point charge Q. V= keQ/r. (r is the distance to the center). The potential inside the conducting sphere is equal to the potential at its surface. V= keQ/R. (R is the radius of the sphere)...
A charge of q = +10-6 C is uniformly distributed on a spherical shell of radius 18 cm. (a) What is the magnitude of th...
A charge of q = +10-6 C is uniformly distributed on a spherical shell of radius 18 cm. (a) What is the magnitude of the electric field just outside and just inside the shell? _______ kV/m (outside) ________ kV/m (inside) (b) What is the magnitude of the electric potential just outside and just inside the shell? ______V (outside) _______V (inside) (c) What is the electric potential at the center of the shell? _____ V What is the electric field at...
6. An infinite cylinder of radius R has a uniform charge density of ρ in its...
6. An infinite cylinder of radius R has a uniform charge density of ρ in its interior, and a surface charge side and outside the cylinder. Be density of -pR on its surface. Find the electric field everywhere in clear about both the magnitude and direction of the field.
6. An infinite cylinder of radius R has a uniform charge density of p in its...
6. An infinite cylinder of radius R has a uniform charge density of p in its interior, and a surface charge density of -pR on its surface. Find the electric field everywhere inside and outside the cylinder. Be clear about both the magnitude and direction of the field.
1. (8 pts) Find the electric field flux through a surface just outside a hollow plastic...
1. (8 pts) Find the electric field flux through a surface just outside a hollow plastic ball of radius R that has charge O uniformly distributed on its outer surface.
Question 9 and 10 9. An infinite wire contains a linear charge distribution of magnitude 10...
Question 9 and 10
9. An infinite wire contains a linear charge distribution of magnitude 10 microcoulombs per meter. What is the electric field at a distance of 10 cm radially away from the wire? 10. By constructing a spherical Gaussian surface of radius r concentric with a sphere of radius a (a less than r) which carries a charge q distributed uniformly over it's surface, show that the electric fleld outside the charged surface is identical with that of...
2. The image shown is taken from the text book why n danger a) The electric...
2. The image shown is taken from the text book why n danger a) The electric feld could have broken down and her hair air surrounding her and she would have b) b) The electric field was about to cause a breakdown in the suffocated in the surrounding air and an upward streamer lightning bolt from a pessing cloud c) The electric field surrounding her would soon attract a downward d) The electric field was a would have resulted 8....
2. +-/0.55 points Tipler6 23.P040 +10-6 C is uniformly distributed on a spherical shell of radius 18 cm. (a) What is the magnitude of the electric field just outside and just inside the shell? A charge of q kV/m (outside) kV/m (inside) (b) What is the magnitude of the electric potential just outside and just inside the shell? V (outside) V (inside) (c) What is the electric potential at the center of the shell? What is the electric field at...
In the figure a small circular hole of radius R = 2.23
cm has been cut in the middle of an infinite, flat, nonconducting
surface that has a uniform charge density σ = 4.23 pC/m2. A zaxis,
with its origin at the hole's center, is perpendicular to the
surface. What is the magnitude of the electric field at point P at
z = 2.79 cm?
MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION BACK NEXT In the figure a small circular...
6. An infinite cylinder of radius R has a uniform charge density of ρ in its interior, and a surface charge side and outside the cylinder. Be density of -pR on its surface. Find the electric field everywhere in clear about both the magnitude and direction of the field.
6. An infinite cylinder of radius R has a uniform charge density of p in its interior, and a surface charge density of -pR on its surface. Find the electric field everywhere inside and outside the cylinder. Be clear about both the magnitude and direction of the field.
1. (8 pts) Find the electric field flux through a surface just outside a hollow plastic ball of radius R that has charge O uniformly distributed on its outer surface.
Question 9 and 10
9. An infinite wire contains a linear charge distribution of magnitude 10 microcoulombs per meter. What is the electric field at a distance of 10 cm radially away from the wire? 10. By constructing a spherical Gaussian surface of radius r concentric with a sphere of radius a (a less than r) which carries a charge q distributed uniformly over it's surface, show that the electric fleld outside the charged surface is identical with that of...
2. The image shown is taken from the text book why n danger a) The electric feld could have broken down and her hair air surrounding her and she would have b) b) The electric field was about to cause a breakdown in the suffocated in the surrounding air and an upward streamer lightning bolt from a pessing cloud c) The electric field surrounding her would soon attract a downward d) The electric field was a would have resulted 8....
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