A spherical shell made of plastic the charge is uniformly distributed over its surface there will not be electric feild inside the shell.Take a gausian surface inside the shell total charge=0 so E=0.even if the shell is deshaped there will be change in feild outside the shell not inside. Even if it is made of metal there will be no feild inside. 2)It does feel a force when it is being removed out and the nature of force is attractive(means easier to move) inside and as it is out of the bloek no oter forces acton it.

Hope got it Dude

i think sriram is wrong.........................

electric field inside the plastic shell is 0......

explanation

by gauss's law

integral(E.ds)=q(enclosed)/e.............1

in case of perfectly spherical shell(plastic i.e. non conducting).......

by spherical symmetry E at a distance say x(<r)since inside has to be same............

we can take E out of integralfrom eq^1................

E(at a distance x)=0(qenclosed=0)..............answer!!!!!!!!!!!!!!!cheers!!!!!!!!!!!!!!!!!

now it is hammered.......so its shape is no more spherical.........

so you cant take E out of integral(no spherical symmetry)..........so u cant say E is 0 inside....but u can definitely say net flux is 0(qenclosed is 0)........

in case of metallic conductor free charges distribute in symmetric or unsymmetric way but will make the net E 0 inside..........

plzzzzzzz rate me ...it took a lot of time...........

A spherical shell made of plastic contains a charge q distributed uniformly over its surface. What is the electric field inside the shell?

Zero.

If the shell is hammered to deshape it without altering the charge, will the field inside be changed?

yes changed to non- zero in general

What happens if the shell is made of a metal.

if shell made of metal then field inside will be zero in both the case whether shape be spherical of deformed

A point charge q is placed in the cavity in a metal block. If a charge Q is brought outside the metal, will charge q feel an electric force?

No. provided cavity be spherical and charge q be placed at the center.