A wire of length 5 cm is bent so as to form an arc of a circle of radius 2cm.What is the angle subtended at the centre in degree

Answer the following:A wire of length 10cms is bent so as to form an arc of a circle of radius 4cms.What is the angle subtended at the centre in degree?

Select and write the correct answer from the given alternatives in each of the following:The length of an arc of a circle of a radius 10 cm which subtends an angle of 45^@ at the centre is

Find the length of the longest chord of the circle of radius 5.2 cm.

Write the length of largest chord of a circle with radius 3.2 cm.

A magnetised wire of moment M is bent into an arc of a circle subtending an angle of 60^(@) at the centre. The new magnetic moment is

A wire of length l, carrying current i, is bent in circle of radius r, then magnetic moment at centre of loop is

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