# No flux given

The magnetic flux $$\phi$$ through a stationary loop of wire having a resistance $$R$$ varies with time as $$\phi=a{t }^{ 2 }+bt$$ ($$a$$ and $$b$$ are positive constants). The average EMF and the total charge flowing in the loop in the time interval $$t=0$$ to $$t= \tau$$ respectively are $$\text{___________}$$.

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