How to collide a cam with a sphere?

I’m new to the Unity Engine. I’ve watched some tutorial videos. I just want to know how to collide a camera with a sphere. I want my caracter to be the sphere and move around with the camera. Any ideas?

I think you have misunderstood collide, a Collider is a virtual physical boundary that can hit another physical boundary. If you want the camera to hit your player and move around with him at the same time, you just needs to place the camera as a sub object of the sphere and put it slightly above and in the same direction the sphereis facing, otherwise you can just try mouse orbit and smooth follow, checking scripts and find out what they do, you can use them for camera. Look for questions like-camera follow player