Which of the Following Is Not a Capacitance?
A) $\frac { \varepsilon _ { 0 } A } { d }$

Multiple Choice

Which of the following is not a capacitance?

A) $\frac { \varepsilon _ { 0 } A } { d }$
B) $\frac { \kappa \varepsilon _ { 0 } A } { d }$
C) $\frac { a b } { k _ { e } ( b - a ) }$
D) $\frac { \ell } { 2 k _ { e } \ln ( b / a ) }$
E) $\frac { k _ { e } \varepsilon _ { 0 } A } { d }$