2) Find V for (0,0) by solving the Laplace equation. re Obtain Q on the conducting sphere and C of the sphere. 2)...
A conducting sphere of radius a has a total charge Q on it. A charge q is brought at a distance d from the center of the sphere (d > a). Using the method of images: (a) Find the electric potential V (r, θ) in the region r > a. (b) Find the surface charge density on the surface of the sphere. (c) Find the force on the charge q.
1. Image charges in sphere We have two charges of magnitude +Q seperated by a distance of 2d, see drawing. a) Find a grounded conducting sphere (potential set to zero) with radius R, where R is the minimum radius needed to neutralize the repulsion from the two charges on each other. Hint: Try to reverse engineer the idea of image charges for a sphere which was discussed in the lectures. Place image charges and find an expression for the force....
A conducting sphere with radius R has total charge Q. (a) Find the relationship between the magnitude of the electric field and the electric potential on the surface of the conducting sphere. (Use the following as necessary R, Q, and E for the magnitude of the electric field.) V = (b) For a sphere of radius 77 cm, calculate the maximum surface electric potential at which the surrounding air begins to break down. Take the dielectric strength of (maximum sustainable...
A conducting sphere of radius a is kept at a constant potential V0. A charge q is brought at a distance d from the center of the sphere (d > a). Using the method of images: (a) Find the electric potential V (r, θ) in the region r > a. (b) Find the surface charge density on the surface of the sphere. (c) Find the force on the charge q.
6. Find V(x,y) when Vo=2sin(7x) + sin(m) by solving the Laplace equation for the 1oy soiving th 10 two-dimensional electrostatic systems. The electric potential of V(x,y) is expressed by the following equation: nrty Vo ov ov ov
6. Find V(x,y) when Vo=2sin(7x) + sin(m) by solving the Laplace equation for the 1oy soiving th 10 two-dimensional electrostatic systems. The electric potential of V(x,y) is expressed by the following equation: nrty Vo ov ov ov
A charge q is positioned at point (0,0,d) above a grounded conducting plate (V=0 on the plate). Use the method of images (see lecture notes) to find the electric field on the plate. Since the electric field inside the conductor is zero (charges are not moving), use Gauss’s Law to find the surface charge density σ(r) on the plate and show that the total charge on the plate is –q.
\((30\) marks) The electric potential in \(V(r, \theta)\); mtside a hollow empty sphere of radius 1 satisfies the Laplace equation. On the surface of the sphere, \(V(1, \theta)=1-\cos 2 \theta\). Given that \(\lim _{r \rightarrow \infty} V(r, \theta)=0\), find \(V(r, \theta) .\)
Calculate the potential due to a point charge q in the presence of a conducting sphere at constant potential V. Radius of conducting sphere is R. The point charge is situated at a distance b from the center of the sphere (b>R) ( Image charge for a grounded conducting sphere is given ; q' = -(Rq)/b and distance r'= R^(2)/b
A solid conducting sphere with radius R centered at the origin carries a net charge q. It is concentrically surrounded by a thick conducting shell with inner radius a and outer radius b. The net charge on the outer shell is zero. (a) What are the surface charge densities sigma at r = R, r = a, and r = b? b) What is the potential V of the inner sphere, assuming a reference point at infinity. Assume now the...
Figure 27.33 shows a charge (+ q) on a uniform conducting hollow sphere of radius a and placed at the center of a conducting spherical shell of inner radius b and outer radius c. The outer spherical shell carries a charge (- q). What is the charge on the outer surface (c) of the shell. Use Gauss' law to find E(r) at positions: within the conducting spherical (r < a); between the sphere and the shell (a<r< b); inside the...