what is the magnitude of a magnetic field produced by a 6.50 m long solenoid and is having 3500 turns if a 555A current is applied on it? (note: \mu _(0)=4\pi x10^(-7)T. m/A).
B=μ0nIl=0.38 T.B=\frac{\mu_0 nI}l=0.38~T.B=lμ0nI=0.38 T.
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