Answer to Question #247296 in Electrical Engineering for Jac

Question #247296

An air core circular coil has 5000 turns. The inner and outer diameters are 20 and 24 cm

respectively. If a current of 2A is passed through the coil, determine the flux density inside the coil. Show complete solution.


1
Expert's answer
2021-10-07T03:15:12-0400

Find the mean radius:


"r=\\frac{D+d}{4}.\\\\\\space\\\\"

The field is


"B=\\mu_0\\frac N{2\\pi r}I=\\frac{2\\mu_0NI}{\\pi(D+d)},\n\\\\\\space\\\\\nB=\\frac{2\\mu_0\u00b75000\u00b72}{\\pi(0.24+0.2)}=0.018\\text{ T}."

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