发布时间:2025-01-20 04:46:32
甲电路图符合要求
2. 最大电热功率p= 12*12 /(6//4)=60W
3当电热桌垫处于低温当时,在一分钟内产生的热量Q=I*IRt=(12*12/4)*6*60=****J
原因是R2只有4欧,如果R2是欧,则不满足最低功率30W
请问一下在寝室怎么样才能保证自己的笔记本电脑不被偷有什么好方法可以借鉴一下吗
2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32 2025-01-20 04:46:32