Doubt from electrostatics

Anyone

Solid hai ki hollow,charge kaha hai

Solid hai.Charge is distributed throughout the volume.

Someone please help. Is it not possible to find electric field in this case.Actually I just want to know the proportionality between field and side of cube.

Proportional to a*3 itna time kyo barbad karaya :sob::sob:

How?

Apne man se saval mat banaya karo ,jitna time barbad Kiya hai itne me to polymer pad leta yaaar , inside an any solid material directly proportional to rho , verify by solid cylinder and shpere

Well thanks n sorry too.