Rated current and power of common household appliances Like TV, light, refrigerator, heater, water heater, washing machine, electric stove The rated current and power of a series of household appliances

Rated current and power of common household appliances Like TV, light, refrigerator, heater, water heater, washing machine, electric stove The rated current and power of a series of household appliances

TV 200W
Electric lamp 60W, 35W, 11W (energy saving)
Refrigerator 100W
Electric heater 1200W
Water heater 800W
Washing machine 60W
Electric furnace 1000W
The rated current is divided by the power and the rated voltage

Document: 39 × 12.8 + 78 × 3.6 simple calculation

39×12.8+78×3.6
=39×12.8+39×2×3.6
=39×(12.8+7.2)
=39×20
=780

The problem of charging 84v battery with 72V charger and 12V charger (electric vehicle)
At present, my electric motorcycle has been upgraded from 72V to 84v, but because I can't buy an 84v charger, I plan to use 72V to charge with 12V charger. 72V charger is a square socket, which can be directly inserted into the car. 12V charger is alligator clip, and the clips are clamped on the positive and negative poles for charging, How do I charge? Do I need to change the line? Do two chargers charge together?

Charging current is not necessarily OK. It depends on the capacity of your battery

Think about it, how to make the calculation simple? 1999 + 199.9 + 1.999 + 1.111

1999+199.9+1.999+1.111
=1999+199.9+1.999+1+0.1+0.01+0.001
=1999+1+199.9+0.1+1.999+0.001+0.01
=2000+200+2+0.01
=2202.01

What is the effect of the object in the water, what is the direction, and what is the direction of gravity

The object is buoyant in the water, and the direction is vertical, opposite to the direction of gravity

A simple algorithm of [3-23 / 8 ÷ (1 / 4 + 75%) / 0.125

[3-(23/8)/1]/0.125
=(3-23/8)/0.125
=3/0.125-(23/8)/0.125
=24-23
=1

The average intensity of lightning current is about 20000 amperes, the voltage is about 1 billion volts, and the duration of each time is 0.0001 seconds

Power P = UI = 100000000v * 20000A = 20000000000w
Energy w = Pt = 200000000000w * 0.0001s = 2000000000j

Real application questions, to the process, good Bonus! All answers~
1. If the square root of a number is 2A + 3 and 1-3a, how to find the number?
2. It is known that the square root of 2a-1 is positive or negative 3, and the cube root of 3a-2b-1 is - 2. How to find the square root of a + 2B?
3. Find the following formula X: (1) 169x & # 178; = 100 (2) (2x-1) &# 178; - 169 = 0 (3) 125-8x & # 179; = 0
（4）1/2（x+3）³=4

1.（2a+3）²=（1-3a）²a=42.∵（±3）²=9∴2a-1=9a=5∵（-2）³=-8∴3a-2b-1=-8b=11∴√a+2b=±3√33.（1）169x²=100x=±10/13（2）（2x-1）²-169=0（2x-1）²=1692x-1=±13x1=7,x...

What is the relationship between the diameter of rubber plastic insulation pipe and that of pipe?
For example, if the pipe is DN32, should the insulation pipe be DN32 or larger? It's not the thickness

The nominal diameter (DN) is the nominal diameter. The nominal diameter (or nominal diameter) is the common diameter of all kinds of pipes and pipe accessories. In fact, you know the outer diameter of the copper pipe (or water pipe), so it's OK. For example, if the outer diameter of the copper pipe or water pipe is 32mm, you can directly choose the temperature insulation pipe with the inner diameter of 32mm, and the thickness of the insulation pipe doesn't need to care about it

Composition materials about life

What kind of season are you living? Spring, summer, autumn, winter? Who decides the mood? God? Himself? Or passer-by? I am in the cold winter