Question

The electric charge that moves through a conductor varies in accordance with the equation q= 800t, where q and t are given in microcoulombs and milliseconds respectively. Calculate the current in amperes.

Answer 1

Solution.

$q=800t(\muСl\sdot ms)=800t\sdot10^{-6}\sdot 10^{-3}(Cl \sdot s)=800\sdot 10^{-9}t (Cl\sdot s);$

$I=\dfrac{dq}{dt}=800\sdot 10^{-9}(A);$

Answer: $I=800\sdot 10^{-9}A.$