According to the passive sign convention, if the power has a plus sign, power is by the element.
A. supplied
B. absorbed
C. generated
D. transferred
查看答案
Is current in any electric circuit always a constant-valued function? Why?
How does current change when the time rate of charges is greater?
How to interpret the uab = -1 volt in two ways?
What relation is between power and energy?
微信支付 
支付宝支付