作业帮问一道物理题Consider a coaxial cable with 2Amps in the c
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问一道物理题
Consider a coaxial cable with 2Amps in the center conductor coming out of the page,and 1Amp in the outer conductor going into the page.The center conductor has a radius of 1mm,the outer conductor's inner radius is 2mm,and the outer conductor's outter radius is 3mm.What is the magnitude of the magnetic field at point P which is 5mm from the cable's axis?
考虑一个同轴电线,中心处导体有2Amps电流向纸外流出,1Amp于外侧导体流向纸内.中心导体半径1mm,外侧导体的内侧半径2mm,外侧半径3mm,求P点处磁场强度,P点位於电缆外5mm处
Consider a coaxial cable with 2Amps in the center conductor coming out of the page,and 1Amp in the outer conductor going into the page.The center conductor has a radius of 1mm,the outer conductor's inner radius is 2mm,and the outer conductor's outter radius is 3mm.What is the magnitude of the magnetic field at point P which is 5mm from the cable's axis?
考虑一个同轴电线,中心处导体有2Amps电流向纸外流出,1Amp于外侧导体流向纸内.中心导体半径1mm,外侧导体的内侧半径2mm,外侧半径3mm,求P点处磁场强度,P点位於电缆外5mm处
根据安培环路定律
B*2πL=μ(I1-I2)
与导体半径无关
B*2πL=μ(I1-I2)
与导体半径无关