Conducting sphere Definition and 110 Threads

  1. K

    Electric potential of a solid conducting sphere with concentric spherical shell

    Homework Statement Consider a solid conducting sphere with a radius 1.5 cm and charge -4.4pC on it. There is a conducting spherical shell concentric to the sphere. The shell has an inner radius 3.7 cm and outer radius 5.1 cm and a net charge 27.4 pC on the shell. A) denote the charge on...
  2. S

    Why Is the Potential Zero on the Surface of a Conducting Sphere in an E-Field?

    I've solved an electrostatics problem where we have to find the surface charge density on a conducting sphere in a previously uniform E-Field, but I had to assume that V=0 on the surface of the cylinder, and I'm not sure why this is the case. I know that E=0 inside, so the potential should be...
  3. Reshma

    What Condition Must q2 Meet to Experience a Repelling Force?

    A grounded sphere of radius 'a' is placed between point charges q1 and q2 with its centre O lying on the straight line joining q1 and q2. The distances of q1 and q2 from O are 2a and 4a respectively. Find the condition that the charge q2 experiences a repelling force. My question: How do I...
  4. S

    What is the electric field around a conducting sphere?

    Hi all, I am having some troubles with some Electromagnetism questions. First of all can someone please explain the basics behind Electric fields. The question asks "What is the electric field around a conducting sphere of radius R carrying a charge Q". Does this imply that because the sphere...
  5. T

    Charged conducting sphere in a uniform electric field?

    Hello, I've been working my way through Griffiths' "Introduction to Electrodynamics" book, and I'm slightly confused by Problem 3.20. For those of you without a copy of this book, given a conducting sphere of radius R and charge Q in a uniform electric field of strength E0, what is the...
  6. A

    Isolated charged conducting sphere problem

    Hi, i appreciate your help. The problem reads an isolated charged conducting sphere with radius 12cm creates an electrical fiels of 4.90^4 21cm away from the center. find the capacitance and charge density? I used the formula C= (a*b)/(Ke*(b-a)) but i get the wrong answer what am i...
  7. A

    Gauss's Law and a conducting sphere

    "A solid conducting sphere with radius R carries a posative total charge Q. The sphere is surrounded by an insulating shell with inner radius R and outer radius 2R. The insulating shell has a uniform charge density \rho a) find the value of \rho so that the net charge of the entire system is...
  8. D

    How Does Charge Distribution Affect Fields and Energy in Nested Conductors?

    Here's the problem that I have been trying to solve: A solid conducting sphere of radius 20cm is concentrically placed inside a spherical shell of inner radius 30 cm and outer radius 40cm. A Charge of 20uC is placed on the inner sphere, and a charge of -10uC is placed on the outer conductor...
  9. G

    Conducting sphere in a conducting spherical shell

    A conducting sphere that carries a total charge of 6 micro C is placed at the center of a conducting spherical shell that also carries a total charge of 6 micro C . (a) Determine the charge on the inner surface of the shell. (b) Determine the total charge on the outer surface of the shell...
  10. A

    Question about Conducting Sphere

    In one of our exercises, there is a conducting sphere (S2) with a cavity inside (S1). A point charge is placed inside the cavity. We were told to try and find the electric field outside by following a set of steps. 1. Imagine that S2 is grounded. In that case, the charge on the cavity wall...
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