ELECTRIC FIELDS & CAPACITORS Flashcards
1
Q
Dielectric constant
A
permittivity of medium/ permittitvity of free space
2
Q
Explain how polar molecules causes a change in capacitance
A
polar molecules align with positive side facing negative plate, this produces a counter electric field. V (pd) reduces between (capacitor) plates but Q (charge) remains the same so capacitance increases.
