Question

A parallel-plate capacitor with area 0.320 m² and plate separation of 2.00 mm is connected to a 5.80-V battery.

a.) What is the capacitance?

b.) How much charge is stored on the plates?

c.) What is the electric field between the plates?

d.) Find the magnitude of the charge density on each plate.

e.) Without disconnecting the battery, the plates are moved farther apart. Qualitatively, what happens to each of the previous answers?

Answer 1

Area of capacitor ,plate separation  , Battery voltage

a)

Capacitance

b)

Charge stored on the plates is

c)

Electric field between the plates

d)

Magnitude of charge density on each plate is

e)

Without disconnecting the battery, the plates are moved farther apart to a new distance,

Capacitance, charge, electric field and charge density, all are inversely proportional to separation between the plates.

So as the separation between the plates increases, all the above physical quantities decrease from their previous answers..