Comparison between force, mass, current and charge in Gravitational field and magnetic field

Question 1

Difference between Magnetic and Gravitational

Answer 1

A mass placed in a gravitational field will always move in the direction of the field ( from higher to lower potential )
which is always negative a point charge placed in an electric field can be both positive and negative

Question 2

Similarity between Magnetic and Gravitational

Answer 2

Both obeys the inverse square law relationship and the potential obeys a reciprocal relationship with distance from the source to the field

Question 3

Carrying conductor in a magnetic field

Answer 3

It does not experience a force if the conductor is parallel to the field direction