hhh

$$a=b+c$$ $$begin{eqnarray} nablacdotvec{E} &=& frac{rho}{epsilon_0} \ nablacdotvec{B} &=& 0 \ nablatimesvec{E} &=& -frac{partial B}{partial t} \ nablatimesvec{B} &=& mu_0left(vec{J}+epsilon_0frac{partial E}{partial t} right) end{eqnarray}$$

• [ ] ee

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