A homemade capacitor is assembled by placing two 8-in. pie pans 4 cm apart and connecting them to the opposite terminals of a 9-V battery.

capacitance=7*10^-12

a- Estimate the charge on each plate. Express your answer using one significant figure.

b-Estimate the electric field halfway between the plates.Express your answer using one significant figure.

c-Estimate the work done by the battery to charge the plates.Express your answer using one significant figure.

d-Which of the above values change if a dielectric is inserted?Which of the above values change if a dielectric is inserted?

Capacitance.

Charge.

Electric field.

Work done by the battery.