A thick straight copper wire, carrying a current of 10 A is bent into a semicircular arc of radius 7.0 cm as a shown in Fig (a). (i) State the direction and calculate the magnitude of magnetic field at the centre of arc. (ii) How would your answer change if the same wire were bent into a semicircular arc of the same radius but in opposite way as shown in Fig. (b)?

A straight wire carrying a current of 12 A is bent into a semi-circular are of radius of 2.0 cm as shown in the adjoining figure (a). Consider the magnetic field B at the centre of the arc. Would your answer be different if the wire were bent into a semi-circular arc of the same radius but in the opposite way a shown in figure (b)?

A current of 10A flows through a semicircular wire of radius 2 cm as shown in figure (a). What is direction and magnitude of the magnetic field at the centre of semicircle? Would your answer change if the wire were bent as shown in figure (b) ?

A straight wire carrying a current 10 A is bent into a semicircular arc of radius 5 cm . The magnitude of magnetic field at the center is

A straight wire carrying a current of 13 A is bent into a semi-circular arc of radius 2 cm as shown in figure. The magnetic field is 1.5 xx 10^(-4)T at the centre of arc, then the magnetic field due to straight segment is

A piece of wire carrying a current of 6.00 A is bent in the form of a circular arc of radius 10.0 cm, and it subtends an angle of 120^@ at the centre. Find the magnetic field B due to this piece of wire at the centre.

A wire is bent forming two semicircles as shown in the figure. Calculate the magnitude of magnetic intensity at the centre.

A part of a long wire carrying a current i is bent into a circle of radius r as shown in figure. The net magnetic field at the centre O of the circular loop is

A straight wire carrying a current of 12A is bent into a semicircular arc of radius 2*0cm as shown in figure. Consider the magnetic field vecB at the centre of arc. (a) What is the magnetic field due to the staight segments? (b) In what way the contribution to vecB from the semicircle differs from that of a circular loop and in what way does it resemble? (c) Would your answer be different if the wire were bent into a semicircle arc of the same radius but in the opposite way as shown in figure

A wire of length L carrying a current I is bent into a circle. The magnitude of the magnetic field at the centre of the circle is