If we know the system has a total resistance of 15 Ohms, we can divide the battery's voltage by the resistance, to find that it has a current of 0.6 amperes, or 600 milliamperes.

我们知道系统的总电阻 15 欧姆，我们可将电池电电阻，得出它的电流 0。6 安培，即 600 毫安。