The magnetic field due to a current carrying circular loop of radius 3cm at a point on the axis at a distance of 4cm from the centre is 54μT. What will be its value at the centre of the loop?

Question:

Options :

(a) 250 ut
(b) 150 ut
(c) 125 ut
(d) 75 ut

Answer :

(a) 250 ut

Answer Steps :

step 1:

step 2:

step 3:

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