Answer :


Current through the wire, I = 90 A (East to West)

Distance of point P below the wire, d = 1.5 m

Using Biot Savart law we can find magnetic field at a distance d from a current carrying conductor.

It is given by:



B = Magnetic field strength

I = current through the coil

0 is the permeability of free space.

0 = 4 × π × 10-7 TmA-1

d = distance of point P

By plugging the values in the equation (1), we get

|B| = 1.2 × 10-5T

Direction of magnetic field,

We know that wire carries current in east to west direction. Using Right hand thumb rule, we can conclude that the direction of magnetic field is from north to south as indicated in the figure.

The magnitude of the magnetic field is 1.2 × 10-5T and its direction is from north to south.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

<span lang="EN-USPhysics - Board Papers

A horizontal circHC Verma - Concepts of Physics Part 2

A current carryinPhysics - Exemplar

A current carryinPhysics - Exemplar

Two infinitely loPhysics - Board Papers

<span lang="EN-USHC Verma - Concepts of Physics Part 2

<span lang="EN-USHC Verma - Concepts of Physics Part 2