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.

6.A straight wire carrying a current of 12 A is bent into a semi-circular arc of radius 2.0 cm as shown in Fig. (a). Consider the magnetic field B at the centre of the arc. a . What is the magnetic field due to the straight segments? b. In what way the contribution to B 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 semi-circular arc of the same radius but in the opposite way as shown in Fig. (b)?

A circular coil of radius 1*5 cm carries a current of 1*5A . If the coil has 25 turns , find the magnetic field .What is the value of M ?

A solenoid of length 10 cm and radius 1 cm contains 200 turns and carries a current of 10 A. Find the magnetic field at a point on the axis at a distance of 10cm from the centre.

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of the magnetic field at the centre of the coil?

Find the length of an arc of a circle of radius 5cm subtending a central angle measuring 15^0dot

Find the magnetic field B due to a semicircular wire of radius 10.0 cm carrying a current of 5.0A at its centre of curvature .

A circular wire of radius 7 cms is cut and bend again into and arc of circle of radius 12 cms . Then angle subtended by the are at the centre is

A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns. The magnetic field at the centre of this coil of n turns will be

The magnetic field B due to a current- carrying circular loop of radius 12cm at its center is 0.50 xx (10^-4) T . Find the magnetic field due to this loop at a point on the axis at a distance of 5.0 cm from the centre.

Consider a 10cm long protion of a straight wire carrying a current of 10 A placed in a magnetic field of 0.1 T making an angle of 53^@ with the wire. What magnetic force does the wire experience?