Xiaoming's family has a TV, a washing machine and two lights. It is known that the current passing through them is 200mA, 1a, 300mA and 250mA respectively. If the circuit current of Xiaoming's family is not more than 3a, can these appliances be used at the same time?

Xiaoming's family has a TV, a washing machine and two lights. It is known that the current passing through them is 200mA, 1a, 300mA and 250mA respectively. If the circuit current of Xiaoming's family is not more than 3a, can these appliances be used at the same time?

Because the consumers are all in parallel, their total current is: I = 0.2A + 1A + 0.3A + 0.25A = 1.75A; & nbsp; & nbsp; because 1.75A < 3a, these consumers can be used at the same time. A: these consumers can be used at the same time