Electricity and Magnetism Answers

A round wastebasket with radiys 0. 15m opening in a uniForm electric field of 300N/C prependicular to opening.waht is the total electric flux through bottom and sides?

Find the critical angle for light traveling from a ruby (n=1.776) into air

In LC circuit, when the capacitor gets discharged, then it's two plates get neutralized. Then how does the reverse current flow become possible? Since there is no polarity left.

A cube of edge a carries a point charge q at each corner.

(a) Calculate resultant force on charge 3 by charges 5. 6 and e.

(b) Show that the resultant electric force on charge 2, by the rest of charges is given

[img]https://upload.cc/i1/2020/03/23/lyospF.jpg[/img]



the question is in the picture,R=4

[img]https://upload.cc/i1/2020/03/23/iuJgmO.jpg[/img]




the question is in picture,R=4

[img]https://upload.cc/i1/2020/03/23/PHdlM4.jpg[/img]



the question is in the picture ,R =4

[img]https://upload.cc/i1/2020/03/23/XIalyt.jpg[/img]




the question is in the picture

[img]https://upload.cc/i1/2020/03/23/RIpb6y.jpg[/img]




R is 4

A long straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the wire . The wire has a charge per unit length of density,and the cylinder has a net charge per unit length of2density from this information use the Gauss's Law to find (a)the charge per unit length on the inner surface of the cylinder (b) the charge per unit length on the outer surface of the cylinder, and (c) the electric field outside the cylinder a distance r from the axis.