  The paper focuses on applying the algebra of octonions to explore the
influence of electric-charge gradients on the electric-current derivatives,
revealing some of major influence factors of high pulse electric-currents. J.
C. Maxwell was the first scholar to utilize the algebra of quaternions to study
the physical properties of electromagnetic fields. The contemporary scholars
employ simultaneously the quaternions and octonions to investigate the physical
properties of electromagnetic fields, including the octonion field strength,
field source, linear momentum, angular momentum, torque, and force and so
forth. When the octonion force is equal to zero, it is able to achieve eight
equations independent of each other, including the fluid continuity equation,
current continuity equation, force equilibrium equation, and second-force
equilibrium equation and so on. One of inferences derived from the second-force
equilibrium equation is that the charge gradient and current derivative are
interrelated closely, two of them must satisfy the need of the second-force
equilibrium equation synchronously. Meanwhile the electromagnetic strength and
linear momentum both may exert an influence on the current derivative to a
certain extent. The above states that the charge gradient and current
derivative are two correlative physical quantities, they must meet the
requirement of second-force equilibrium equation. By means of controlling the
charge gradients and other physical quantities, it is capable of restricting
the development process of current derivatives, reducing the damage caused by
the instantaneous impact of high pulse electric-currents, enhancing the
anti-interference ability of electronic equipments to resist the high pulse
electric-currents and their current derivatives. Further the second-force
equilibrium equation is able to explain two types of superconducting currents.
