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can we conserve mechanical energy if mangetic force is an internal force ?? & it is given that there is no external force acting on the system... is magnetic force a consrvative force??? how to identify whether a given force is a conservative force (just by looking at it since we dont know beforehand that the work done in a closed loop is zero by that force)????can magnetic force ever be an internal force??if yes can u gve an example?/


 
can we conserve mechanical energy if mangetic force is an internal force ?? & it is given that there is no external force acting on the system... is magnetic force a consrvative force???  how to identify whether a given force is a conservative force (just by looking at it since we dont know beforehand that the work done in a closed loop is zero by that force)????can magnetic force ever be an internal force??if yes can u gve an example?/


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