title: How to calculate the voltage value for current from the wall socket using iphone magnetometer values?
body: <p>I want to calculate the current passing in the wall socket using iphone.I am using CMMotionmanagerFramework and i got X,Y,Z values with that values i can calculate the magnetic field across the surroundings by using those values i want to calculate the voltage level of the wall socket. Please provide me the answer.</p>