A current carrying insulated wire is bent in the form of a circular loop and magnetic field at the centre of the loop is found to be $$2$$μT. Now the some wire is bent into a loop of three turns. Then new magnetic field at its centre will be $$_______$$

Question

A current carrying insulated wire is bent in the form of a circular loop and magnetic field at the centre of the loop is found to be  $$2$$μT. Now the some wire is bent into a loop of three turns. Then new magnetic field at its centre will be $$_______$$

Infinity Learn · Accepted Answer

$$r=l2$$π         ∴   $$B=$$μ$$0i2r=$$μ$$0$$$$π$$ilNow,    $$2$$$$π$$r'$$.2=l$$      ⇒   r'$$=l2$$$$π$$n∴    B'$$=n$$. μ$$0i2r$$'$$=$$ n. μ$$0il/$$π$$n=$$ μ$$0$$$$π$$$$iln2=Bn2=$$ $$2$$× $$32$$ μ$$T=18$$μT.

A current carrying insulated wire is bent in the form of a circular loop and magnetic field at the centre of the loop is found to be $2 μ T .$ Now the some wire is bent into a loop of three turns. Then new magnetic field at its centre will be _______

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A current carrying insulated wire is bent in the form of a circular loop and magnetic field at the centre of the loop is found to be 2μT. Now the some wire is bent into a loop of three turns. Then new magnetic field at its centre will be _______

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A current carrying insulated wire is bent in the form of a circular loop and magnetic field at the centre of the loop is found to be $2 μ T .$ Now the some wire is bent into a loop of three turns. Then new magnetic field at its centre will be _______