Two small bar magnets are held with their north poles facing each other.
The repulsive force, FFF, between the magnets can be calculated using the equation:
F=kd2 F = \frac{k}{d^2} F=d2kwhere:
The magnets are positioned 6.0 cm apart.
The repulsive force measured between them is 0.50 N.
Calculate the value of kkk.
State the unit.
Practise Edexcel GCSE Physics Magnets and magnetic fields with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.