A uniform but time varying magnetic field `B=(2t^3+24t)T` is present in a cylindrical region of radius `R =2.5` cm as shown in figure.

The force on an electron at `P` at `t=2.0` s is

A uniform but time varying magnetic field B=(2t^3+24t)T is present in a cylindrical region of radius R =2.5 cm as shown in figure. The variation of electric field at any instant as a function of distance measured from the centre of cylinder in first problem is

A uniform but time varying magnetic field B=(2t^3+24t)T is present in a cylindrical region of radius R =2.5 cm as shown in figure. The variation of electric field at any instant as a function of distance measured from the centre of cylinder in first problem is

A uniform but time varying magnetic field B=(2t^3+24t)T is present in a cylindrical region of radius R =2.5 cm as shown in figure. In the previous problem, the direction of circular electric lines at t=1 s is

A uniform but time varying magnetic field B=(2t^3+24t)T is present in a cylindrical region of radius R =2.5 cm as shown in figure. In the previous problem, the direction of circular electric lines at t=1 s is

A time varying magnetic field B = Kr^(3)t is existing in a cylindrical region of radius 'R' as shown (where k is a constant). The induced electric field 'E' at r (R )/(2) is

A uniform but time-varying magnetic field B(t) exists with in a circular region of radius a and is directed in to the plane of the paper as shown in the figure. The magnitude of the induced electric field at the point P at a distance r from the centre of the circular region