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In: Physics

(a) Show that the quantity 1 ε0 μ0 has the dimension of speed, where ε0 is...

(a) Show that the quantity

1
ε0 μ0

has the dimension of speed, where ε0 is vacuum permittivity and μ0 is vacuum permeability.
(b) Explain how each constant is important for electricity or magnetism, and what does it mean in practical terms that one is small and the other one is large?
(c) Compare the numerical value of

1
ε0 μ0

with the speed of light.

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