人们常有这种说法:触电时人被电吸住了,抽不开。实际上,这个说法是错误的。我们知道,不论是否存在电流,在一般情况下导线或电器中的正、负电荷的电量是相等的,对外的静电作用是相互抵消的。即使局部地方偶尔出现少许正、负电荷电量不相等的情况,其静电引力也是微不足 People often have this argument: people were electrocuted when electrocuted, can not afford to smoke. In fact, this statement is wrong. We know that, regardless of the presence or absence of current, in general the amount of positive and negative charge in a wire or appliance is equal and the external electrostatic effects cancel each other out. Even if some local occasional a small amount of positive and negative charge is not equal to the case of its electrostatic attraction is also negligible