Show that `overset (rarr) |E|=frac(dV)(dr)` is dimensionally correct.

Correct the following statement. overset (rarr)|E| = -frac(dv)(dx) is correct.

Correct the following statement. overset (rarr) E =-frac(dV)(dx) can not be the correct relation.

Show that the expression h=KT//_((rpg)) for ascent h of a liquid of Surface Tension T and density P in a capillary tube of radius r is dimensionally correct.

Deduce the following : overset (rarr) E= - (dV)/(dx)

The force overset (rarr) F acting on charge 'q' moving with a velocity overset (rarr)V in a magnetic field of induction overset (rarr)B is given by

Deduce the relation overset (rarr)J = sigma overset (rarr)E from first principles considering Ohm's law to be true.

For an isolated point charge both the electric field-intensity, overset (rarr) (E) and potential (V) are zero only at….. .

How the electric field intesity overset (rarr)(E) and the potential gradient (frac (dV)(dx) ) related to each other.

Deduce the following : Potential gradient (frac (dV)(dx)) two adjacent points.

An electron enters a uniform magnetic field region such that the filed induction overset (rarr) B is parallel to the velocity overset (rarr) V of the electron. Then the electron will move