11. See Orders of magnitude ( magnetic field ) for examples of other magnetic field strengths . 12. Presently, only the head and brain can be imaged at these high magnetic field strengths . 13. Reiner Gamma's magnetic field strength is approximately 15 nT, measured from an altitude of 28 km. 14. Does the magnetic field strength have to change? 15. When the magnetic field strength is changed, the oscillation period of the simple harmonic oscillators changes proportionally. 16. The power density per surface unit is proportional to the product of the electric and magnetic field strengths . 17. The maximum magnetic field strength ( saturation point ) in metglas is five times higher than in ferrite. 18. To date, no correlation has been found between the magnetic field strength and the magnitude of the kick. 19. The paper posited that the machine had an ideal magnetic field strength that maximized its ability to catch electrons. 20. Different atomic nuclei within a molecule resonate at different ( radio ) frequencies for the same magnetic field strength .
