Hi Aditya, that's a really good question. The main difference between Force and Remote Force is how you apply the force. In Ansys Mechanical, Force can be applied directly to the body, while Remote Force uses what so-called remote point, and this remote point can be adjusted (xyz coordinate).
Typically, we use Remote Force to represent a complete system, but we want to minimize the computational cost by not including some components in our FEM model.
You can also refer to this Difference between Remote and ordinary displacement/force constraints (ansys.com)
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