كيفية تحويل الطاقة بالجول (J) إلى القدرة الكهربائية بـ واط (W).
You can calculate واط from joules and seconds, but you can't convert joules to watts, sبـce joule and watt units represent different quantities.
القدرة P بـ واط (W) is equal to the energy E بـ joules (J), divided by the time period t بـ seconds (s):
P(W) = E(J) / t(s)
إذن
واط = جول / ثانية
أو
W = J / s
What is the power consumption of an electrical circuit that has energy consumption of 90 joules fأو time duration of 3 seconds
P(W) = 90J / 3s = 30W
