10. - 16-25-35-50-70-95 square meters of cable wiring to use how much copper nose What is the size of copper nose for 10,16,25,35,50,70,95 square cable connection

10. - 16-25-35-50-70-95 square meters of cable wiring to use how much copper nose What is the size of copper nose for 10,16,25,35,50,70,95 square cable connection

You can use as big a nose as you want?
The cross-sectional area of copper wire is 49.7, what is the cross-sectional area of aluminum wire of the same length (copper resistivity 0.0175, aluminum resistivity 0.0283)
S=49.7*0.0283/0.0175=80.4
How much electricity does a 3000 Watt appliance consume in an hour?
Pure resistance circuit, one kilowatt per hour, consumes one kilowatt per hour. For example, electric stove, electric frying pan, electric oven, etc. washing machine, refrigerator, etc., inductive and capacitive circuit, does not consume one kilowatt per hour. For reference only
Density / kg * m negative cubic
Density in kg / m ^ 3
There is also a common density unit, g / cm ^ 3
1000kg/m^3=1g/cm^3
The negative third power of kg * m is kg / m ^ 3
Density in kg / m ^ 3
Is the DC resistivity of 35 square millimeter copper wire 0.702 ohm / km (20 degrees) qualified
DC resistance (resistivity 0.0172) of copper wire with 35 square mm and 1000 meters:
R＝ρ×L/S＝0.0172×1000/35≈0.5(Ω)
Obviously, the line section is less than 35 square, which should be 25 square
R＝ρ×L/S＝0.0172×1000/25≈0.7(Ω)
Power consumption of 45 watt electric appliance in one hour
The degree is kilowatt hour
45 watts is 0.045 kilowatts
An hour's work is enough
0.045 kwh * 1 hour = 0.045 kWh
Boring, don't ask how to calculate
zero point zero four five
What does the density unit KGM to the power of minus three mean?
Thank you!
That's g / cm3
If a fuse with length L, cross-sectional area s and resistivity ρ is cut into two equal sections, and the two sections are used together as one, its resistance and resistivity are ()
A. ρL4S、ρ2B. ρL4S、ρC. ρL8S、ρD. ρL8S、ρ2
According to the formula r = ρ ls of the law of resistance, if the length becomes half of the original and the cross-sectional area becomes twice of the original, the resistance becomes 14 of the original. But the resistivity remains unchanged. Therefore, B is correct and a, C and D are wrong. Therefore, B is selected
Household electricity is 220 V, how much is the current?
My battery stove is 1800W, my light bulb is 100W, my fan is 500W, and my rice cooker is 1000W. Do you have the same current? What is the current intensity that people can bear? Thank you for your participation and answer
Obviously different, current is power in addition to voltage. If you have different power and same voltage, how can you have the same current? The current that people can bear is about 30mA and the voltage is about 36V
The average density of the body is about 1.0 x 10 to the third power of kg / M?
Correct. The cubic power of 1.0 x 10 is the density of water. People can basically float in the water. You can just try to bury your head under the water with your breath closed, so the density of your body is equal to that of water, which is slightly larger than that of water