 #1
 40
 2
Homework Statement
Note that this formula (##C=4 \pi \epsilon_0 R##) and the others we have derived for capacitance involve the constant multiplied by a quantity that has the dimensions of a length.
Homework Equations
##\epsilon_0## has the following units in SI:
$$\frac {C^2} {N \cdot m^2}$$ or $$\frac F m$$
The Attempt at a Solution
I don't know why the textbook states this? Does it mean it results in having the ##F## unit after canceling out the unit of length in SI? A friend told me that we also present ##\epsilon_0## in SI with ##\frac H m##, thus multiplying by a length gives a result in ##H##. I don't see any ##\frac H m## unit for epsilon naught on Wikipedia.
Attachments

23.5 KB Views: 356