I have a simple question... does the magnetic field angle of direction vary when you vary the field strength? For example, say i have a magnetoresistive sensor, which, to my knowledge only detects the magnetic field angle of direction (unlike a halls, which senses field strength). I place this sensor at a short distance X from a coil. Assuming X is constant, what would the sensor detect if I varied the current in the coil? I'm assuming that the field angle doesn't change with field strength, so the sensor would output a constant reading, but I'm not sure if that is a correct assumption.