Capacitance (A-level only)

Easy Medium Hard

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

Question 44

Capacitor $P$ , filled with a dielectric material of relative permittivity $εr\varepsilon_r$ , has circular plates of radius $R\,$ separated by a distance $d$ . The capacitance of this arrangement is $C$ .

Capacitor $Q\,$ is constructed using circular plates of radius $4R\,$ separated by a distance $3 d$ , and contains a dielectric with a relative permittivity of $εr8\displaystyle \frac{\varepsilon_r}{8}$ .

What is the capacitance of capacitor $Q$ ?

$16C\frac{1}{6} C$

$23C\frac{2}{3} C$

$83C\frac{8}{3} C$

$163C\frac{16}{3} C$

Capacitance (A-level only) Questions

A Level
Physics
Capacitance (A-level only)

A Level
Physics AQA
Question bank