The name plate of an electric kettle is marked with the word "220V 1000W". What is the current when it works normally?

The name plate of an electric kettle is marked with the word "220V 1000W". What is the current when it works normally?

1000W/220V=4.55A

The label of hair dryer is 220 V 50 Hz 1500 W. if it is on 220 V 60 Hz power supply, what is the power?

Upper positive solution

The name plate of a brand electric kettle is marked with "220V & nbsp; & nbsp; & nbsp; 1100W". Please answer by calculation: (1) what is the current of this electric kettle when it works normally? (2) This electric kettle can boil a kettle of water in 5 minutes. How much electricity does it consume?

(1) When the electric kettle works normally, the current is I = Pu = 1100w220v = 5A; a: the current of this kind of electric kettle works normally is 5A. (2) the electric energy consumed by the electric kettle is w = Pt = 1100W × 5 × 60s = 3.3 × 105J; a: the electric kettle can boil a kettle of water in 5min, and the electric energy consumed is 3.3 × 105J

The electric kettle's name plate is marked with "220V 1100W" and the current in normal operation

According to the standard calculation, it should be 3.8a. You can also calculate it yourself. 0.76 divided by 220 times 1100 = current