To calculate the length of coil first of all we need to measure the coil diameter, say diameter of a coil is 12" inch and number of loops is 12.
Formula, L = D * π * # of loops
Here, L = Length
D = Diameter
π = 3.14 (Constant)
# = Number of loops
 |
| Fig : 01 - Coil diameter calculation |
So, L = 12 * 3.14 * 12
= 452.16 inch
= 452.16/12 feet
= 37.68 feet
So the length of this coil will be 37.68 feet
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