Electricity and Magnetism Answers

A physics instructor in an anteroom charges an electrostatic generator to a 25 micro columnb then it carries it in lecture room.The electric flux through lecture hall wall will be?

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