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1.电场强度与电场力的关系电场强度是表现电场力的属性的物理量,有电场就有场强,与检验电荷和其所受到的电场力无关,电荷只是把电场力的性质反映出来.场强的定义式是E=F/q,这个比值显然与q、F无关。场强的大小只与电场本身性质有关;电场力是电荷受电场的作用,必须电场和电荷并存.由F=qE可知电场力大小与qE乘积成正比.正电荷受电场力方向与场强方向相同,负电
1. The relationship between electric field strength and electric field force Electric field strength is a physical quantity that expresses the property of electric field force. Field electric field has field strength, which has nothing to do with the test charge and the electric field force it receives. Electric charge only reflects the nature of electric field force. The strong definition is E=F/q. This ratio is obviously independent of q and F. The magnitude of the field strength is only related to the nature of the electric field itself; the electric field force is the role of the electric field by the electric field, and the electric field and the electric charge must coexist. It is known from F=qE that the magnitude of the electric field force is proportional to the product of qE. The positive charge is affected by the direction of the electric field force and the field strength. The same, negative