A charge of `1C` is placed at one end of a non conducting rod of length `0.6m`. The rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with angular frequency `10^(4)pi rad//s.` Find the magnetic field at a point on the axis of rotation at a distance of `0.8m ` from the centre of the path.

A charge of 1 coul. is placed at one end of a non-conducting rod of length 0.6m. the rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with angular frequency 10^(4) pi "radian/sec" . Find the magnetic field at a point on the axis ofrotation at a distance of 0.8 from the centre of the path. Now half of the charge is removed from one end and placed on the other end. The rod is rotated in a vertical plane about horizontal axis passing through the mid-point of the rod with the same angnlar frequency. Calculate the magnetic field at a point on the axis at a distance of 0.4m form the centre of the rod.

A charge of 1 coulumb is placed is one end of a non-conducting rod of length 0.6m .The rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with an angular velocity 10^(4)pi rad//sec .Find the magnetic field at a point on the axis of rotation of a distance of 0.8m from the centre of the path is Npixx10^(-4) T ,then find value of N .

A uniform metal rod is rotated in horizontal plane about a vertical axis passing through its end at uniform rate. The tension in the rod is

Two balls of masses m and 2m are attached to the ends of a light rod of length L . The rod rotates with an angular speed omega about an axis passing through the center of mass of system and perpendicular to the plane. Find the angular momentum of the system about the axis of rotation.

In the figure shown one end of a light spring of natural length l_(0)=sqrt(5/8)m(~~0.8m) is fixed at point D and other end is attached to the centre B of a uniform rod AF of length l_(0)//sqrt(3) and mass 10kg. The rod is free to rotate in a vertical plane about a fixed horizontal axis passing through the end A of the rod. The rod is held at rest in horizontal position and the spring is in relaxed state. It is found that, when the rod is released to move it makes an angle of 60^(@) with the horizontal when it comes to rest for the first time. Find the (a) the maximum elogation in the spring . (Approximately) (b) the spring constant. (Approximately)

A rod of length l is rotated with angular speed omega about an axis passing through the centre of rod and perpendicular to its length. A uniform magnetic field B is applied parallel to the axis of rotation, Potential difference developed between the ends of the rod is

A metal rod of length 15xx10^(-2)m rotates about an axis passing through one end with a uniform angular velocity of 60 rad s^(-1) . A uniform magnetic field of 0.1 Tesla exisits in the direction of the axis of rotationn. Calculate the EMF induced between the ends of the rod.