A circular wire of radius 15cm is cut and bent so as to lie along the circumference of a loop of radius 120 cm. write the measure of the angle subtended by it at the centre of the loop.

A circular wire of radius 7. 5c m is cut and bent so as to lie along the circumference of a hoop whose radius is 120c m . Find in degrees the angle which is subtended at the centre of the hoop.

The circular wire of diameter 10 cm is cut and placed along the circumference of a circle of diameter 1 meter. The angle subtended by the wire at the centre of circle is equal to

What is the circumference of a circular disc of radius 14 cm?

A circular wire of radius 7cm is cut and bend again into an arc of a circle of radius 12cm angle subtended by the arc at the centre is

In the circle of 5cm.radius, what is the length of the are which subtends and angle of 33^(@)15' at the centre.

A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is

A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is

A small circular loop of wire of radius a is located at the centre of a much larger circular wire loop of radius b. The two loops are in the same plane. The outer loop of radius b carries an alternating current I=I_(0)cos(omegat) . The emf induced in the smaller inner loop is nearly ?

A conducting circular loop of radius a is connected to two long, straight wires . The straight wires carry a current I as shown in figure . Find the magnetic field B at the centre of the loop.

Find the length of an arc of a circle of 3 cm radius if the angle subtended at the centre is 30^(@).(pi=3.14) .