Equipotential Lines vs Lines of Force: What's the Relationship?

[poohbearhug]

Hi Good Day!
I have a question. Can you tell me what is the between relationship of equipotential lines and the lines of force? I'm a bit confuse. thanks :)

 

[granpa]

they are always at right angles to each other

 

[poohbearhug]

What else? I still can't understand.

 

[granpa]

replace electric with gravitational field
sea level would be an equipotential

 

[Feiel]

The equipotential lines indicate that the magnitude of the respective force is equal at all places along that line.

Taking the center of a sphere as the origin of it's gravitational force, then its circumference can represent an equipotential line, since gravity will act with the same force at all points along the line.

 

[poohbearhug]

Thanks :)