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what is potential gradient? determine potential gradient across AB in a potentiometer 1 ?

Potential gradient:

Potential gradient is defined as the change in potential with respect to distance.

dV/dx,dV/dy,dV/dz represents potential gradient distance w.r.t x axis,y axis and z axis respectively.

The SI unit of potential gradient is volt metre-1 (Vm-1).

In the second part of your question diagram is missing from which you have mentioned AB. Please post the complete question so that we can assist you.

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 hey ..I think ths ques. is  frm some diagram... well leave dat

u can easily find potential gradient by dV/dl , V=potential diff. and l=length of the wire.

If we have a graph b/w V & l , the slope of the graph will be the potential gradient.

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 Potential gradient is the potential drop per unit length i.e. V=kl where k is the potential gradient so k= V/l

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