If the potential function is given by V=4x+3y, then the magnitude of electric field intensity at the point (2, 1) will be

Answers (1)

Relation b/w V and E is, E = -\frac{\mathrm{dV} }{\mathrm{d} r}

E = -\frac{\mathrm{dV} }{\mathrm{d} x} -\frac{\mathrm{dV} }{\mathrm{d} y}

E = -\frac{\mathrm{d(4x+3y)} }{\mathrm{d} x} -\frac{\mathrm{d(4x+3y)} }{\mathrm{d} y}

E = -4i -3j , this will be everywhere

 

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