The electric potential at certain point is given by,v=-7.5x²-3x ,where v is in volts and x is in meters. then the electric field at that point is -(15x+3).
Given,
The electric potential at certain point is given by,
v=-7.5x²-3x .
where v is in volts and x is in meters.
We know,
electric potential (v) =electric field ×radius
Electric potential is defined as the amount of work needed to move a charge from reference point to the specific point against an electric field.
Also, electric field (E) =dv/dx
Electric field at a point is the force experienced by the unit positive charge placed at that point.
E=d(-7.5x²-3x)/dx=-15x-3
Thus ,the electric field at that point is given by -(15x+3 ).
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Disclaimer:the data in the question is incorrect .here is the complete question .
Question: the electric potential at a certain point is given by v=-(7.5x²+3x).where v is in volts and x is in meters.what is the electric field at that point?
