Use *E = NvwB*

We need
to work out *v*:

Length *l *of the beer passes every second.
The volume of the cylinder is *pr*^{2}l
= 0.4 m^{3}.

Þ
*l* = 0.4 ÷ (*p*
× 0.175^{2}) = 4.16 m

Þ
*v* = 4.16 m s^{-1}

Treat the liquid as a single
turn:

*E* = 4.16
m s^{-1} × 0.35 m × 5 × 10^{-3}
T
= 7.3 × 10^{-3} V = 7.3 mV