i KNOW IT'S TOO late! but i will say the probable answers are 1 and 4 only. and about the 7th one i will say the sphere is nearly neutral not purely,and also the amount of charge on the magic tape is not so large that it will result into big electric polarisation of sphere and result in net...
There is a weak possibility of getting a metal charged by friction as, a pure conductor, such as copper, has a rigid molecular construction that will not permit its electrons to be moved about freely in contrast to insulators that get charged with the slightest friction heat or pressure as it is...
hi! sir , please just tell me that this below explanation of charging by friction is right or not?
If anything wrong then just give the correct explanation.I will be highly thankful if you please give your own deep explanation of this topic!
If two materials with a difference in their...