If a positive test charge were placed directly between the particles the force exerted on it would be in the same direction that the electric field points toward the negative particle.

当在粒子之间放置一个正测试电荷时。 力的方向是朝向负粒子的场。

That's the one that says if you point your right thumb in the direction of a current and curl your fingers, the magnetic field points in the same direction as your fingers.

这是说，如果您将右手拇指指向流的方向并弯曲手指，则磁场指向的方向与您的手指相同。