Physics I / Line Integrals
Practice question · Select all that apply

Which conditions guarantee that a vector field F in ℝ² is conservative?

Hints
  1. Several of these conditions are equivalent restatements of each other.
  2. A condition about magnitude alone says nothing about rotation.
Show the answer
  • A. ∮ F · dr=0dr = 0 for every closed curve
  • C. P/y\partial P/\partial y = Q/x\partial Q/\partial x (where F=(P,Q)F = (P, Q))
  • D. F=φF = \nabla\varphi for some scalar function φ\varphi
Why

Equal mixed partials, existence of a potential, and zero circulation are all equivalent.

Read the lesson: Line Integrals →

Practise Line Integrals

The app has 8 more questions on this lesson, and keeps your place in the course. Physics I is free to start.

More questions on Line Integrals