45. Determine the charge Q placed in glycerol (ρ0 = 1,26 g / cm3) of the lead bead (ρ = 11,3 g / cm3) with a diameter d = 7,0 mm, if in a uniform electric field is turned bead suspended in glycerol. The electric field is directed vertically upwards, his strength E = 9.0 kV / cm.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)