Finding the inner diameter of a shell - Interesting Problem

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• Electrostatics: Capacitance of a spherical capacitor.

  Finding radius of outer shell A spherical capacitor is formed from two concentric, spherical, conducting shells separated by vacuum. The inner sphere has radius 15.0 cm, and the capacitance is 116 pF. 1.) What is the radius of the outer sphere?

• Drawing and Computing Electric Field

  Because the outer thick conducting shell is given a total charge Q which is equal to the charge inside that shell, therefore EIV = 0 ---Answer f) The electric charge density on the inner surface of the conducting shell, sigma(in) = charge induced

• Electrostatics: Field due to chargespherical shells

  The inner shell has a total charge of +2q, and the outer shell has a total charge of +4q.

• Electrostatics : field and potential for spherical charges.

  Now the field inside the shell (a < r < b) is zero[ qi = (+q) + (-q) = 0] the potential difference will be zero and hence potential at the inner surface of the shell will be the same as on the outer surface. 3.

• Acceleration of Gravity/Divergence Theorem

  acceleration is : For ba contribution from the entire inner wire and from a shell of thickness (r-b) from the outer shell.

• Spherical capacitor: Equivalent parallel plate capacitor

  Answer: A spherical capacitor consists of two concentric conducting shells. The inner shell is given charge and the outer shell is earthed.

• Electrostatics: Charges induced on spherical conductors

  A total charge of Qin=+20 µC is placed on the inner shell and a total charge of Qout=-25 µC is placed on the outer shell.

• Finding Forces in All Members of a Truss

  287337 Finding Forces in All Members of a Truss See attached file with diagram. (a) Find the forces in all members of the truss. State whether the forces are compressive or tensile.

• Gauss Law applied to charged rod and cylinder

  (a)What is the magnitude of the electric field 15 cm from the axis of the shell? (b)What is the surface charge density on the inner and outer surface of the shell?