The number of electric field lines crossing an area `DeltaS is n_1 when Delta vecS||vecE`, while the number of field lines crossing the same area is `n_2` when `DeltavecE` makes an angles of `30^@` with `vecE`. Then

The number of electric field lines crossing an area DeltaS is n_(1) when Delta vec(S)||vec(E ) while number of field lines crossing same area is n_(2) when Delta vec(E ) makes an angle of 30^(@) with vec(E ) , then :

The number of electric lines of force crossing through a given area is

In a region where intensity of electric field is 5 NC^-1 , 40 lines of electric force are crossing per square metre. The number of lines crossing per square metre where intensity of electric field is 10 NC^-1 will be :

The angle between electric field intensity vec(E) and the area vector vec(ds) at which the T.N.E.I. is maximum is

Electric flux phi through an element area triangleS when area is placed in region of uniform field E is

When a current carrying coil is placed in a uniform magnetic field of induction B , then a torque tau acts on it. If I is the current, n is the number of turns and A is the face area of the coil and the normal to the coil makes an angle theta with B , Then

Given a uniform electric field vecE=4xx10^(3)hati N//C . Find the flux of this field through a square of side 5cm on a side whose plane is parallel to the y-z plane. What would be the flux through the same square, if the plane makes a 30^(@) angle of with the x-axis?

Given a uniform electric field vecE=4xx10^(3)hati N//C . Find the flux of this field through a square of side 5cm on a side whose plane is parallel to the y-z plane. What would be the flux through the same square, if the plane makes a 30^(@) angle of with the x-axis?