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A conducting sphere of radius r is given a charge q the electric potential and the electric field at

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A conducting sphere of radius r is given a charge q the electric potential and the electric field at

A conducting sphere with radius R is charged until the magnitude of the electric field just outside its surface is E. The electric potential of the sphere, relative to the potential far away, is: E/R 2ER E/(2R) ER zero. 26. A 4-cm radius conducting sphere has a surface charge density of 2 x 10 -6 C/m 2. Its electric potential at the surface ...4 An isolated conducting sphere of radius is given a charge +r Q. This charge may be assumed to act as a point charge situated at the centre of the sphere, as shown in Fig. 5.1. Fig. 5.1 Fig. 5.2. shows the variation with distance from the centre of the sphere of the potential x V due to the charge +Q. Fig. 5.2 (a) State the relation between ...

Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential.There are two closely related notions of capacitance: self capacitance and mutual capacitance.: 237-238 Any object that can be electrically charged exhibits self capacitance.In this case the electric potential difference is measured between the object and ground.charge of ring is ∆Q dr dQ r i "z2 r2 Find the electric potential on the axis of a uniformly charged disk of radius R and total charge Q at point P located a distance z from the center of the disk. Electric Potential on the Axis of a Uniformly Charged Disk σ= Q πR2 →dQ=2πrdrσ→ dQ= 2πrdrQ πR2 V P =V i i ∑= 1 4πε 0 dQ r ii →V P ...

For a conducting sphere Electric fidld at centre = 0 Potential at centre = R K Q = 4 π ϵ 0 R Q