There are 2 reasons you could hear a noise while using your cookware on the hob. The first is if the dot induction plate was not dried thoroughly and water gets between the stainless steel induction plate and the pan—this can cause a popping noise until the moisture evaporates.
This is normal and will not effect cooking performance. The second reason could be the lid of the cookware. Moisture can get trapped between the glass and the stainless steel rim around the glass and cause a popping/crackling/hissing sound. Or as the lid heats up and the glass and stainless steel start to expand slightly, rubbing can occur from the thermal expansion and create a noise.