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.

Calculate the length of the arc of a circle of radius 31.0 cm which subtends an angle of (pi)/(6) at the centre.

A piece of wire 20 cm long is bent into the form of an arc of a circle subtending an angle of 60^(@) at its centre. Find the radius of the circle.

A straight wire carrying a current of 12 A is bent into a semicircular arc of radius 2.0 cm as shown in figure (a). Consider the magnetic field vecB at the centre of the arc. (a) What is the magnetic field due to the straight 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 semicircular arc of the same radius but in the opposite way as shown in figure (b) ?

A chord of a circle of radius 20 cm subtends an angle of 90^(@) at the centre. Find the area of th corresponding major segment of the circle. (Use pi = 3.14 )

A chord of a circle of radius 12 cm subtends an angle of 120^(@) at the centre. Find the area of the corresponding segment of the circle. (Use pi = 3.14 and sqrt(3) = 1.73 )

A chord of a circle of radius 6cm is making an angle 60 ^(@) at the centre.Find the length of the chord.

In a circle of radius 12cm , a chord subtends an angle of 120^(@) at the centre. Find the area of the corresponding minor segment of the circle (use pi=3.14 and sqrt(3)=1.732)

In a circle with radius 3 cm an arc of length 1 cm subtends an angle of measure ……… at the centre of the circle.

In a circle of radius 10cm , a chord subtends a right angle at the centre. Find the area of the corresponding : (use pi=3.14) i. Minor segment ii. Major segment