A) Determine the magnitude of hte magnetic field midwaybetween two long straight

Question

A) Determine the magnitude of hte magnetic field midwaybetween two long straight wires 1.4 cm apart in terms of thecurrent 16 A in one whent he other carries 24 A. Assume thatthe currents are in the same direction. B) Again, now with the currents in the oppositedirection. I keep working this problem out but I am not getting thecorrect answer. Please help. A) Determine the magnitude of hte magnetic field midwaybetween two long straight wires 1.4 cm apart in terms of thecurrent 16 A in one whent he other carries 24 A. Assume thatthe currents are in the same direction. B) Again, now with the currents in the oppositedirection. I keep working this problem out but I am not getting thecorrect answer. Please help.

Explanation / Answer

0 = 4 * 10E-7 The magnetic field due to a long straight wire B =0 I / (2 r) at a distance r B = 2 * 10E-7 I / .007 = 2.85 * 10E-5 I If the currents are in the same direction B = 2.85 *10E-5 (24 - 16) = 2.29 * 10E-4 N If the currents are in the opposite direction B = 2.85 *10E-5 (24 + 16) = 1.14 * 10E-3 N

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