A student wished to use a magnetic field sensor to measure the field between the poles of a U-shaped magnet. The sensor has been calibrated, but is not properly zeroed (ie. does not read zero when there is no magnetic field present). The sensor has what is termed a "zero error" which is a type of systematic (as opposed to random) error. To correct for this, the student uses the sensor to measure the field in the direction pointing from the north pole to the south pole, and then turns the sensor around to measure the field in exactly the opposite direction. The results are presented below: Direction of Sensor Reading (mT) N to S 0.256 S to N 0.095 Knowing that the magnetic field in each case is actually equal in magnitude but opposite in direction, what is the magnetic field strength between the poles of the magnet (from N to S)? mT A slinky coil with 110 turns is stretched out to a length of 61.2 cm. What is the value of n, the number of turns per meter? turns per meter