Question

(a) Remember that 200 km transmission wire that carried 1000 A? It took an electron 27 years to travel the length of it. Calculate the magnitude and direction (use right hand rule for wires) of the M-Field your feet would experience if the wire did indeed stretch from here to Corpus Christi (simplify to due South). You are facing due South, also the direction of current, and the wire is 25 m from your feet

(b) Like E-Field, when there is more than one source of M-Field, we use superposition to determine the net M-Field. Consider again that 200 km transmission wire carrying 1000 A. However, to make things simpler, consider that you're standing in a place near the Earth's magnetic equator where the Earth's M-Field is parallel to the ground. You are still facing south in the direction of current. Find the magnitude and direction of the net M-field due to both the wire and the Earth's M-Field (magnitude 0.305E-4 T).

Magnitude:

Direction needs to be in Degrees N of E, N of W, S of E, or S of W:

degrees  of

Answer 1

2 a) Magnetic field due to wine, BE RITY + B C (419410+) (1000) (217) (25m) B = 8x16T B = 8MT field is along East 6) Magnetic field due to earth at equator BE = 0.3058104, Due North BE Buet Ve Baina Burt = Bwine & Bearth (8x104) cî) + (30.5X166)(+9) (182) + (30.5) (x106) = 31.5x1067 Buet = Buet -4 0.315 x 10 “ BE Bewine 30.5 8 Direction, Tano 0 = 750. Dinection of net magnetic field is (750 North of East.