(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Three series elements have a.c. voltages across them of [tex]25cos(2 \pi 60t + 30') , 15cos(2 \pi 60t + 60') , 30cos(2 \pi 60t -45') [/tex] Volts respectively. The current flowing is [tex]5.2cos(2 \pi 60t + 25')A[/tex]

Using phasor diagram find

a)total voltage

b)phase angle between total voltage and current

c)overall power factor

d)total power and power dissipated by each element

3. The attempt at a solution

I found part a to be [tex]50.5cos(2 \pi 60t + 4.9')[/tex]

and part be, the angle is 20.1 degrees with the current lagging behind.

I found the PF to be 0.94, what about d)power diss....i found the total power to be 123W

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Phasor Diagram

Can you offer guidance or do you also need help?

**Physics Forums | Science Articles, Homework Help, Discussion**