Consider that you walk around your house perfomingmeasurements of the tangential

Question

Consider that you walk around your house perfomingmeasurements of the tangential component of the magnetic field withrespect to the direction of your motion, and that the distancebetween measurements is constant. What do you expect to obtain forthe sum of the magnetic field, assuming 1) that your house is consuming electric energy? 2) that your house is consuming electric energy but there is ahot wire grounded in the house? 3) that your house is not consuming electric energy? Do not neglect the magnetic field of the earth. Explain. I'm not sure about #1, but wouldn't #2 and #3 be the same? I'mlost, any help would be much appreciated!! Consider that you walk around your house perfomingmeasurements of the tangential component of the magnetic field withrespect to the direction of your motion, and that the distancebetween measurements is constant. What do you expect to obtain forthe sum of the magnetic field, assuming 1) that your house is consuming electric energy? 2) that your house is consuming electric energy but there is ahot wire grounded in the house? 3) that your house is not consuming electric energy? Do not neglect the magnetic field of the earth. Explain. I'm not sure about #1, but wouldn't #2 and #3 be the same? I'mlost, any help would be much appreciated!!

Explanation / Answer

1)When our house is consuming electric energy let the currentflowing in our house be I,therefore the magnetic field is B1 = (oI/2a) o= 4 * 10-7 N/A2and a is the distance between measurements the sum of the magnetic field is B = (BT + BH) + B1 BT is the tangential component of magneticfield,BH is the horizontal component of earth's magneticfield. or B = (BT + BH) + B1 =(BT + BH) +(oI/2a) 2)when the house is consuming electric energy but thereis a hot wire grounded in the house then the current flowingthrough the house decreases with time therefore,the total magneticfield is B = (BT + BH) -(oI/2a) 3)when the house is not consuming electric energy then I = 0therefore we get B = (BT + BH) -(o * 0/2a) = (BT +BH) the sum of the magnetic field is maximum when the house isconsuming electric energy. BT is the tangential component of magneticfield,BH is the horizontal component of earth's magneticfield. or B = (BT + BH) + B1 =(BT + BH) +(oI/2a) 2)when the house is consuming electric energy but thereis a hot wire grounded in the house then the current flowingthrough the house decreases with time therefore,the total magneticfield is B = (BT + BH) -(oI/2a) 3)when the house is not consuming electric energy then I = 0therefore we get B = (BT + BH) -(o * 0/2a) = (BT +BH) the sum of the magnetic field is maximum when the house isconsuming electric energy.

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