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1000 W, 220 V, 50 Hz, how much electricity per hour
1000W is the rated power, 220V is the rated voltage, and 50Hz is the AC frequency specified in China
So 1000 W is equal to one degree of electricity
A certain type of microwave oven, rated voltage is 220 V, rated frequency is 50 Hz, rated power is 1000 W, microwave frequency is 2500 MHz
(1) Wavelength of microwave oven
(2) How much electricity is consumed in the process of heating a bag of only 5 ℃ milk to 65 ℃?
(3) The mass of this bag of milk is 250kg, and the specific heat capacity of milk is close to that of water. What is the efficiency of the microwave oven in heating milk
The heating time is 1min4s
1. Wave speed = wavelength * frequency, microwave wave speed = light speed, so wavelength = light speed △ microwave frequency
2. Electric energy (q) = electric power X time
3.Q=Cm（t2-t1） P=Q/t
I have graduated from University for many years. I really can't remember. I can only think so much. I think I forgot to give the time
Product parameters: rated voltage: 220 V, rated frequency: 50 Hz, rated power: 40 W, how much electricity a day?
24 x 40 / 1000 = degree (KWH), other voltage and frequency are independent parameters
There is an electric kettle with rated voltage of 220 V, working frequency of 50 Hz and rated power of 1100 W,
How much current does the electric kettle work at rated voltage?
How much power will be consumed in 60 seconds?
According to the formula I = P / u, the working current is 1100 / 220 = 5 a
According to the formula w = Pt, the electric energy is 1100 * 60 = 66 000 J
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