What is Magnetic field ?

Magnetic field lines

What is the magnetic field at the center of the loop shown in figure ?

What is the magnetic field along the axis and equatorial line of a bar magnet ?

What is the magnetic field at a point on the axial line on a current carrying circular loop?

In the magnetic meridian of a certain place, the horizontal component of the earth's magnetic field is 0.26 G and the dip angle is 60^@ . What is the magnetic field of the earth at this location ?

If a thin wire of length 88 cm is bent into a circular loop and a current of 1A is passed, a. What is the magnetic field at the centre? b. What is the magnetic field at the centre if the wire is bent into a semicircle and doubled on it? c. If the wire is looped into two loops, find the magnetic field at the centre.

A long copper wire of diameter 2 mm carries a current of 1.5 A. a. What is the magnetic field (B) at a perpendicular distance 1 m from the middle of the wire? b. What is the field (B) on the surface of the conductor? c. At a distance 1 mm from the axis, what is the value of the magnetic field?

A surveyer is using a magnetic compas 3m below a power line in which there is a steady current of 75 A . What is the magnetic field t this point due to the power line ?

An element Delta l = Delta x hat i is placed at the origin and carries a large current I= 10 A( figure). What is the magnetic field on the y - axis at a distance of 0.5 m. Delta x = 1 cm