I have a 120V AC fan which is a bit "noisy" so I want to add a series WW resistor to reduce the speed a bit thus reducing the noise.
I am pretty confident I can calculate the resistor (value & wattage) needed but after reading "conflicting" results (on the web) I want to be sure I'm understanding exactly what is "happening" when a series resistor is added.
1st source states that E will remain the same (120v) after the addition of the series R and current (I) will be reduced.
2nd source states that E will be reduced (say from 120v to 100v for example).
Obviously both can't be right! I thought I understood this, but now I'm not so sure!
Thanks -
I am pretty confident I can calculate the resistor (value & wattage) needed but after reading "conflicting" results (on the web) I want to be sure I'm understanding exactly what is "happening" when a series resistor is added.
1st source states that E will remain the same (120v) after the addition of the series R and current (I) will be reduced.
2nd source states that E will be reduced (say from 120v to 100v for example).
Obviously both can't be right! I thought I understood this, but now I'm not so sure!
Thanks -