A lot of times this is also displayed as W = V * A or watts equals volts multiplied by amps. Lets re-order this formula for an example: W = V * A V = W / A A = W / V This example will show why a higher DC voltage is best in large solar systems. Lets say you have 100...
a unit of energy equal to a power of one watt operating for one hour. 1 watt-hour equals3600 joules. Is a light bulb watts per hour? And how much electricity does a 60-watt light bulb use per hour when turned on? ... "A 60-watt incandescent bulb uses60 wattsof energy; we bill...
Or kilovolt-amps times power factor equals kilowatts. When you want to know how much the electricity is costing you, you use watts. When you are specifying equipment loads, fuses, and wiring sizes you use the VA, or the rms voltage and rms amperage. This is because VA considers the peak...
Imagine a pressurized water tank. Connect a narrow hose to it and open the valve. You'll get a certain flow of water because the hose is a certain size and length. Now the interesting part: make the hose twice as long, and the flow of water decreases by exactly two times. Makes sense?
(这是一个功率公式,power是功率,volts 是伏特,amps是安培,watts是瓦特.- ) 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 举报 电路设备所消耗的功率(每单位时间的功)是:P=VI (读P equals V times I)其中V单位是伏特,I单位是安培,P以瓦特作单位. 解析看不懂?免费查看同类题视频解析查看解答...
The PTC subsidy has been in effect now for 27 years. Congress has adjusted the PTC many times through the years but today the subsidy is about $.02/kWhr. So, the power company gets money back in the form of a subsidy for roughly 67% of what they produce – i.e., the company get...