# Potentially good?

There are two stationery fields of force $$\vec{F} = ay\hat{\imath}$$ and $$\vec{F} = ax\hat{\imath} + by\hat{\jmath}$$, where $$\hat{\imath}$$ and $$\hat{\jmath}$$ are the unit vectors of the $$x$$ and $$y$$ axes, and $$a$$ and $$b$$ are constants. Find out which of these fields are potential.

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