Consider the tidal forces on body A as it orbits body B in a particular configuration and state of motion. Each of the following independent changes would increase these forces except if

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Tidal forces depend on the gravitational gradient, which increases as the distance between the two bodies decreases (A) or as the size of the body experiencing the forces increases (B). Increasing the radius of body B without changing its mass (C) does not increase the gravitational pull on A, thus not increasing the tidal forces experienced by A.

Consider the Tidal Forces on Body a as It Orbits