3. A square loop of side 6 cm carries a current of 30 A. Calculate the magnitude of magnetic field B at a point P lying on the axis of the loop and a distance 7 cm from centre of the loop.

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Q. A square loop of side 6 cm carries a current of 30 A. Calculate the magnitude of magnetic field

\to B

at a point

P

lying on the axis of the loop and a distance

\sqrt{7}

cm from centre of the loop?

Q. A square loop of side

a = 6 c m

carries a current

I = 1

A

. Calculate magnetic induction

B

(in

μ T

) at point

P

, lying on the axis of loop and at a distance

x = \sqrt{7} c m

from the center of loop.

The magnetic field due to a current carrying circular loop of radius 3 cm at a point on its axis at a distance of 4 cm from the centre is 54 $μ$ T. The magnetic field (in $μ$ T) at the centre of the loop will be

Q. The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is

54 μ T

. What will be its value at the centre of the loop ?

Q. Magnetc field due to a current carrying circular loop of radius

12 cm

at its centre is

0.5 \times 10^{- 4} T

. Find the magnetic field due to this loop at a point on the axis at a distance

5.0 cm

from centre.

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