Find the centre of gravity of a thin wire bent to a semicircle of radius r.

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 portion of a conductive wire is bent in the form of a semicircle of radius r as shown below in fig. at centre of semicircle, the magnetic induction will be

An infinite long straight wire is bent into a semicircle of radius R , as shown in the figure . A current I is sent through the conductor. The magnetic field at the centre of the semicircle is :

The magnetised wire of moment M and length I is bent in the form os semicircle of radius r. Then, its magnetic moment is

Determine the centre of gravity of a thin homogeneous plate having the form of a rectangle with sildes r and 2r from which a semicircle with a radius r is cut out of figure.

Determine the centre of gravity of a thin homogeneous plate having the form of a rectangle with sildes r and 2r from which a semicircle with a radius r is cut out of figure.

Determine the centre of gravity of a thin homogeneous plate having the form of a rectangle with sildes r and 2r from which a semicircle with a radius r is cut out of figure.

A uniform wire of length l and mass M is bent in the shape of a semicircle of radius r as shown in figure. Calculate moment of intertia about the axis XX'