Question

Find the resultant magnetic moment if the dipole is bent in the shape of semicircle.​

Answer 1

2M/π

Explanation:

As per as the Questions, Dipole is bent in the form of the Semicircle,

Thus, Length of the Iron Rod = Circumference of Semi-Circle

                                             L  = 1/2 × 2πr

                                             L = πr

⇒  Radius of the Semicircle = r

                                             = L/π

Using the Formula,

 Magnet Dipole  =  Magnetic Dipole Movement × Minimum Separation between the two Dipoles.

Magnetic Dipole Movement = M

Minimum Separation Between the Dipoles = Diameter of the Circle

                                                                        = 2 × Radius(r)

                                                                        = 2 × L/π

Thus, Magnetic Dipole = M × 2 × L/π

Therefore, Magnetic Movement = Magnetic Dipole/Length of the Rod

                                                   = (2ML/π)/L

                                                   = 2 × M/π

Thus, the Magnetic Movement between the Dipoles is 2 × M/π

Hope it helps.

Answer 2

Answer:

See this pic my friend...

2M/π

PLEASE MARK THIS AS THE BRAINLIEST