A square surface of side L meter in the plane of the paper is placed in a uniform electric field E(volt/m) acting along the same plane at an angle with the horizontal side of the square as shown in figure. The electric flux linked to the surface,in units of volt−m, is

Charges q, 2q, 3q, 4q are placed at the corners A, B, C and D of a square as shown in the following figure. The direction of electric field at the centre of the square is along

A square coil of side 10 cm consists of 20 turns and carries 12 A. The coil is suspended vertically and the normal to the plane makes an angle of 30^@ with the direction of uniform magnetic field of 0.8T. The torque acting on the coil is

A square coil of side 10 cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane makes an angle of 30^(@) with the direction of uniform magnetic field of 0.8 T. The torque acting on the coil is

A dipole with its charges -q and =q located at the points (0,-b,0) and (0,+b,0) is present in a uniform electric field E. The equipotential surfaces of this field are planes parallel to the YZ planes:- What is the direction of the electric field E?

A square of side L meters lies in the x-y plane in a region , where the magnetic field is given by vec B = B_0 (2 vec i + 3 vec j + 4 vec k) T where B_0 is constant. The magnitude of flux passing through the square is

A square coil of side 10 cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^@ with the direction of a uniform horizontal magnetic field 0.8 T. What is the magnitude of torque experienced by the coil?

Consider a square loop of wire loaded with a glass bulb of mass m hanging vertically, suspended in air with its one part in a uniform magnetic field B with its direction coming out of the plane of paper. Due to the current I flowing through the loop, there is a magnetic force in upward direction calculate the current I in the loop for which the magnetic force would be exactly balanced by the force on mass m due to gravity.

A square wire loop with sides 0.5 m is placed with its plane perpendicular to the magnetic field.The resistance of the loop is 5 Omega .Find at what rate the magnetic induction should be changed so that a current of 0.1 A is induced in the loop.

A dipole with its charges -q and =q located at the points (0,-b,0) and (0,+b,1) is present in a uniform electric field E. The equipotential surfaces of this field are planes parallel to the YZ planes:- How much torque would the dipole experience in this filed?