Variation of magnetic field with the distance along the axis of a current carrying coil and estimate the radius of the coil
- https://dkpandey.weebly.com/uploads/1/3/5/3/13534845/circular_coil.pdf
- https://www.niser.ac.in/sps/sites/default/files/basic_page/Magnetic%20field%20variation%20along%20the%20axis%20of%20a%20circular%20coil%20and%20a%20Helmotz%20coil.pdf
- https://www.coursehero.com/file/104022179/Experiment-8pdf/
- https://iitr.ac.in/Academics/static/Department/Physics/BTech%201st%20year%20lab/1_Helmholtz.PDF.pdf