Answer
$B = 0.0402$ [T]
Work Step by Step
The magnetic field near the center of a long solenoid is given by $B = \mu \frac{NI}{L}$
With $\mu = \mu_0$, $N =600$, $I = 8A$ and $L = 0.15 m$, we find $B = 0.0402 T$
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