A solenoid of 1000 turns per metre has a core with relative permeability 500. Insulated windings of the solenoid carry an electric current of 5A. The magnetic flux density produced by the solenoid is : (permeability of free space = 4$\pi$ $\times$ 10$-$7 H/m)

Question

A solenoid of 1000 turns per metre has a core with relative permeability 500. Insulated windings of the solenoid carry an electric current of 5A. The magnetic flux density produced by the solenoid is : (permeability of free space = 4$\pi$ $\times$ 10^$-$7 H/m)

$\pi$T

2 $\times$ 10^$-$3$\pi$ T

10^$-$4$\pi$ T

${\pi \over 5}$ T

Solution

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