If a quantity you calculated has units of $\frac { \mathrm { kg } \cdot \mathrm { m } ^ { 3 } } { \mathrm {~s} \cdot \mathrm { C } ^ { 2 } }$ what is that quantity?
A) resistance
B) current
C) capacitance
D) potential
E) resistivity

Question

Quizplus · Accepted Answer

Resistivity is defined as the resistance of a conductor of unit length and unit cross-sectional area. Its SI unit is ohm-meter ($\Omega \cdot m$), which can be broken down into $\frac { \mathrm { kg } \cdot \mathrm { m } ^ { 3 } } { \mathrm {~s} \cdot \mathrm { A } ^ { 2 } }$. The question mistakenly uses $\mathrm { C } ^ { 2 }$ (coulombs squared) instead of $\mathrm { A } ^ { 2 }$ (amperes squared), but the structure of the unit suggests it's aiming to describe resistivity.

If a Quantity You Calculated Has Units Of kg⋅m3 s⋅C2\frac { \mathrm { kg } \cdot \mathrm { m } ^ { 3 } } { \mathrm {~s} \cdot \mathrm { C } ^ { 2 } } s⋅C2kg⋅m3​

If a Quantity You Calculated Has Units Of $\frac { \mathrm { kg } \cdot \mathrm { m } ^ { 3 } } { \mathrm {~s} \cdot \mathrm { C } ^ { 2 } }$