rear wheel noise

hey guys i was driving the other day and randomly my rear driver side wheel started making noise… its a consistent sound but does not sound like the whiring of a bearing, and the dust cover is not touching anything. any ideas???

maybe you warped a rotor? does it go away or get louder when you step on the brakes or use your e-brake?

could be many things. Rust ridge on rotor touching caliper, rock in tread, nail in tire, loose hubcap, ice buildup. Just remove tire, remove any signs of corrosion (using die grinder or wire brush) or things stuck in the tread.

found it ! the inner pad is done and was grinding. thanks guys