Charged Insulating Blocks: Rank by charge density. The block of insulating mater

Question

Charged Insulating Blocks: Rank by charge density. The block of insulating material shown at right has a volume Va. An overall charge Q_0 is spread evenly throughout the volume of the block so that the block has a uniform charge density rho_0. Six additional charged insulating blocks are shown below. For each block, the volume is given as well as either the charge or the charge density. Rank the charge densities of the six blocks. OR, the charge density is the same for all six blocks OR, the ranking for the charge density cannot be determined Carefully explain your reasoning.

Explanation / Answer

Charge density = Net charge / volume ( p = Q / V )

Block A = 2Q / V = 2p

Block B = Q/V = p

Block C = Q.2V = p/2

Block D = p

Block E = 2p

Block F = 2p

Ranking

Block A = Block E = Block F > Block B = Block D > Block C

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