Question

16) What is the capacitance of a parallel-plate capacitor with an area of 200cm^2, a distance of 0.20mm between the plates, and polystyrene as dielectric?

A) 2.3nF

B) 0.89nF

C) 23nF

D) 8.9nF

17) What is the capacitance of a metal sphere of radius ??

A) ?=?/?

B) C=k/R

C) C=V/Q

D) C=QV

18) Putting 10V across a capacitor with 10cm2 plates allows you to store 150nC of charge. What is the separation between the plates of the capacitor?

A) 0.59?m

B) 5.9?m

C) 59?m

D) 590?m

Answer 1