Two plates labeled A and B are separated and initially neutral. Through some mechanism, 7 μC (microcoulombs) of positive Charge are move from plate A to plate B. Answer below questions about the final electrostatic state of each plate after the transfer. 1) After the transfer is complete, indicate how many excess protons (or singly positive ions) are on Plate B ? 2) After the transfer is complete, what is the sign and number of the uncanceled elemental charges on Plate A. Note: positive values require no sign.

1)  Approximately    excess protons

2)  negative     ()

Explanation:

1)

Recall that the charge of an electron or proton is approximately:

Therefore, to find the number of protons transferred in 7 micro-Coulombs of charge, we do:

Approximately    excess protons

2)

The sign and number of uncanceled elemental charges on plate A is therefore negative  , because the same number of positive charges were removed from it, changing its neutrality

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.