Power Formula: Frequency & Electrical Power Explained - Physics Forums
Mar 6, 2015 · We all know that the electrical power = V * I * cos Q. and I know how this formula is derived. but yet intuitively I was expecting to see the frequency in the formula. I just need intuitive …
Given mass, distance, and time, calculate power - Physics Forums
Sep 19, 2010 · Homework Statement How much power does a weightlifter expend when lifting a 50kg barbell a distance of 1.2m in a time interval of 1.5s? Homework Equations Power=work done/time …
How to Calculate Power Dissipation in Resistors? - Physics Forums
Jan 14, 2012 · Calculate the power dissipated in R1, R2 and R [/b] Previously i worked out the Current I1, I2 and I3 so i planned to use this to calculate the power dissipated; For current i got; I1= 0.8409 A …
Calculating 208V Power: 3 Methods Explained - Physics Forums
Jul 27, 2016 · Need some help here, as things get a little blurry with the phase angles and everything. But here's my question: I have a 208V/30A 2 pole breaker, feeding 10A to each phase. i need to …
How to calculate power loss in transmission cables?
Sep 23, 2008 · Power station generates 120kW Electricity can be transmitted either at 240V or at 24000V using a step-up transformer. The cables have total resistance of 0.4W What is the power …
How to calculate the power generated by a turbine (steam)?
Oct 28, 2014 · How to calculate the power generated by a turbine (steam)? clurt Oct 28, 2014 Mass flow Power Pressure Steam Temperature Turbine Click For Summary
Power and RMS Value of a Signal - Physics Forums
Jul 2, 2021 · I need to calculate the power and RMS value of some equations. The problem is, I found two methods to do that and don't know which is the right method. I...
AC termination power calculation - Physics Forums
Sep 28, 2024 · How do we calculate power dissipation for AC termination on a clock signal? The resistor is dissipating only at the edges (assuming a square wave).
Derivation of formula for pump power - Physics Forums
Oct 14, 2011 · Hi I was given the following formula for to calculate the power of a centrifugal pump: P = ρ * g * Q * H i.e. Power = Density * acceleration due to gravity * volumetric flow rate * total head I …
Calculate the power of a the lift motor - Physics Forums
May 20, 2011 · Please help : Calculate the power of a the lift motor,when is lift on a distance on a building site lift 400kg of brick50m to the top of a buiding in 24...