A100 VDC supply and a 200V peak-to-peak AC sine wave supply are each connected t
ID: 2079018 • Letter: A
Question
A100 VDC supply and a 200V peak-to-peak AC sine wave supply are each connected to identical heaters in identical oil baths Which supply will result in a higher temperature at equilibrium? They will have the same equilibrium temperature because the 100 vdc supply has the same average value (100 v) as the 200v p-p supply (100 v) The 100 vdc supply because is has a higher RMS voltage (100 v) than the 200 v p-p supply (70.7 v) They will have the same equilibrium temperature because the 100 vdc supply has the same peak value (100 v) as the 200v p-p supply (100 v) The 100 vdc supply because is has a higher average voltage (100 v) than the 200v p-p supply (0 v)Explanation / Answer
The 100V DC supply will result in a higher temperature at equilibrium than 200v peak-to-peak as the voltage in AC sine wave increases from 0 to 100V and then decreases to 0 which causes the heating and cooling of the coil in the heater. Whereas the DC supply is constant throughout which results in only the heating of the coil.
In other words it can be said that then 100V DC supply because it has a higher RMS voltage compared to 200V peak-to-peak supply.