🩵capacitance🩵

how to calculate capacitance?

Q/V

area under charge pd graph is what?

energy stored by the capacitor

what is the time constant?

time it takes for the charge to fall to 37% of initial

what two factors affect the time taken for the capacitor to charge?

capacitance and resistance

what does it mean if dialectic constant is 6?

permittivity of the dielectric is 6x the permittivity of free space

what does the graph of v and I look like for charging

how to find maximum current?

capacitance / the rate of change of voltage

what does the area under a charge against v graph show?

energy stored by the capacitor

what happens between the plates when they build up charge?

an electric field is created between them

what happens when a dielectric is in the electric field?

molecules in the dielectric rotate and sign themselves with an electric field

how does a dielectric reduce the electric field?

the molecules have their own electric field that oppposes the electric field between the plates

the stronger the electric field, the ? the potential difference to move charges between them?

larger

reducing electric field means what is reduces?

the pd needed to move a charge

what happens to electric field if separation changes?

no effect