Watt Wireless
How do I calculate the energy in joules and watt-hours with information on milliamps?
Let I wanted to calculate the power consumption of my wireless network card over an hour, but the specifications say that: the power saving mode it uses 28mA in standby it uses = 4.66 mA emission mode = 248 mA. conversions What I need to do to to get an answer joules and watt-hours? Since I live in North America, should I assume that the wireless network adapter uses 120V and 248mA and solve using this? Hmm .. but the use 120V AC to begin ..? The bill is a wireless network card connected via USB to my computer. PSU on computers North America are set to 120V, so yes, DC. Thank you for your time.
I suspect these figures are at a low DC voltage, for example 12 volts. But assuming 120 volts, then power = 120v x 0.248a = 30 watts of power IS THE POWER CONSUMPTION. 30 watts is power, and translated (energy) to 30 joules per second or 3600 * 30 = 107000 joules per hour. Watt-hours is a substitute term for energy, alternate joules. 30 watts for 1 hour is 30 watt-hour ..
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