A current `i` ampere flows in a circular arc of wire whose radius is `R`, which subtend an angle `3pi//2` radian at its centre. The magnetic induction `B` at the centre is

A current I ampere flows in a circular area of wire which subtends an angle of 3pi//2 radians at the centre whose radius is R. find an expression for magnetic induction B at the centre.

A circular arc of wire of radius of curvature r subtends an angle of p/4 radian at its centre. If i current is flowing in it then the magnetic induction at its centre is -

An arc of a circle of raduis R subtends an angle (pi)/2 at the centre. It carriers a current i . The magnetic field at the centre will be

An arc of a circle of raduis R subtends an angle (pi)/2 at the centre. It carriers a current i . The magnetic field at the centre will be

Consider a circular arc of radius R which subtends an angle phi at its centre .Let us calculate the electric field strength at C

If the arc of a circle of radius 60 cm subtends and angle 2/3 radian at its centre , then the length of the arc will be