<p>The electrical potential a distance r from a point charge q is 155 V, and the magnitude of the electric field is 2240 N/C. Find the values of q and r.</p>

answers

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

Related questions

A solid, insulating sphere of radius a has a uniform charge densityof ? and a total charge of Q. Concentric with this sphere is anuncharged, conducting hollow sphere whose inner and outer radii areb and c.

(a) Find the magnitude of the electric field in the followingregions.
r < a (Use the following as necessary: ?, e0, and r.)

a < r < b (Use the following as necessary: Q, e0, p, andr.)

b < r < c (Use the following as necessary: Q, e0, p, andr.)

r > c (Use the following as necessary: Q, e0, p, and r.)

(b) Determine the induced charge per unit area on the inner andouter surfaces of the hollow sphere.

inner surface

outer surface

A small conducting spherical shell with inner radius a and outerradius b is concentric with a larger conducting spherical shellwith inner radius c and outer radius d (see the Figure ). The innershell has total charge +2q, and the outer shell has charge+4q.

A.) Calculate the magnitude of the electric field in terms of q andthe distance r from the common center of the two shells for r<a.And find the direction of the electric field for r<a
B.) Calculate the magnitude of the electric field for a<r<b.And find the direction of the electric field for a<r<b.
C.) Calculate the magnitude of the electric field for b<r<c.And find the direction of the electric field for b<r<c.

A conducting spherical shell with inner radius a and outer radius b has a positive point charge Q located at its centre.

The total charge on the shell is -3Q, and it is insulated from its surroundings.

Derive an expression for the electric-field magnitude E in terms of the distance r from the centre for the regions r < a, a < r < b, and r > b.

coppermacaw150

Weekly leaderboard

Home

Homework Help 3,900,000

Physics 110,000

<p>The electrical potential a distance r from a point charge q is 155 V, and the magnitude of the electric field is 2240 N/C. Find the values of q and r.</p>

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard