A nonconducting ring of mass m and radius R, with charge per unit length `lambda` is shown in fig. It is then placed on a rough nonconducting horizontal plane. At time t=0, a uniform electric field `vecE =E_(0)hati` is switched on and the ring starts rolling without on and the ring starts rolling without sliding. Determine the friction froce (magnitude and direction ) acting on the ring.

A nonconducting ring of mass m and radius R, with charge per unit length lambda is shown in fig. It is then placed on a rough nonconducting horizontal plane. At time t=0, a uniform electric field vecE =E_(0)hati is switched on and the ring starts rolling without sliding. Determine the friction force (magnitude and direction ) acting on the ring.

A nonconducting ring of mass m and radius R, with charge per unit length lambda is shown in fig. It is then placed on a rough nonconducting horizontal plane. At time t=0, a uniform electric field vecE =E_(0)hati is switched on and the ring starts rolling without sliding. Determine the friction force (magnitude and direction ) acting on the ring.

A nonconducting ring of mass m and radius R is charged as shown. The charged density i.e. charge per unit length is lambda . It is then placed on a rough nonconducting horizontal surface plane. At time t = 0, a uniform electric field vecE=E_(0)hati is switched on and the ring starts rolling without sliding. The friction force (magnitude and direction) acting on the ring, when it starts moving is

A non conducting solid sphere of mass m and radius R having uniform charge density +rho and -rho as shown in figure. It is then placed on a rough non conducting horizontal plane. At t=0 a uniform electric field vecE=E_(0)hati N//C is switched on and the solid sphere starts rolling with sliding. The magnitude of frictional force at t=0 is (2rhopiR^(3)E_(0))/K . Find the value of K

A non conducting solid sphere of mass m and radius R having uniform charge density +rho and -rho as shown in figure. It is then placed on a rough non conducting horizontal plane. At t=0 a uniform electric field vecE=E_(0)hati N//C is switched on and the solid sphere starts rolling with sliding. The magnitude of frictional force at t=0 is (2rhopiR^(3)E_(0))/K . Find the value of K

A non-conducting ring of radius r has charge per unit length lambda . A magnetic field perpendicular to plane of the ring changes at rate Db/dt. Torque experienced by the ring is

A non-conducting ring having q uniformly distributed over its circumference is placed on a rough horizontal surface. A vertical time varying magnetic field B = 4t^(2) is switched on at time t = 0. Mass of the ring is m and radius is R. The ring starts rotating after 2 s, the coefficient of friction between the ring and the table is

A non-conducting ring having q uniformly distributed over its circumference is placed on a rough horizontal surface. A vertical time varying magnetic field B = 4t^(2) is switched on at time t = 0. Mass of the ring is m and radius is R. The ring starts rotating after 2 s, the coefficient of friction between the ring and the table is

A non-conducting ring having q uniformly distributed over its circumference is placed on a rough horizontal surface. A vertical time varying magnetic field B = 4t^(2) is switched on at time t = 0. Mass of the ring is m and radius is R. The ring starts rotating after 2 s, the coefficient of friction between the ring and the table is