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.
Solution.
q=800t(μСl⋅ms)=800t⋅10−6⋅10−3(Cl⋅s)=800⋅10−9t(Cl⋅s);q=800t(\muСl\sdot ms)=800t\sdot10^{-6}\sdot 10^{-3}(Cl \sdot s)=800\sdot 10^{-9}t (Cl\sdot s);q=800t(μСl⋅ms)=800t⋅10−6⋅10−3(Cl⋅s)=800⋅10−9t(Cl⋅s);
I=dqdt=800⋅10−9(A);I=\dfrac{dq}{dt}=800\sdot 10^{-9}(A);I=dtdq=800⋅10−9(A);
Answer: I=800⋅10−9A.I=800\sdot 10^{-9}A.I=800⋅10−9A.
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