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Worksheet: Using Ampereโ€™s Law to Calculate the Magnetic Field of Currents

Q1:

The coil whose lengthwise cross section is shown in the accompanying figure carries a current ๐ผ and has ๐‘ evenly spaced turns distributed along the length ๐‘™ .

Evaluate ๏…‡ โ‹… B I d in terms of ๐œ‡ 0 and ๐ผ for path ๐ด .