Power & Frequency: Which Delivers More?

  • Thread starter Thread starter Passionate Eng
  • Start date Start date
  • Tags Tags
    Frequency Power
AI Thread Summary
Two sinusoidal voltage sources at 50Hz and 60Hz will deliver the same power when connected to a 1-ohm resistor, assuming both provide the same voltage. The instantaneous electric power in an AC circuit is calculated using P = VI, but these values fluctuate continuously. The focus in AC circuits is typically on average power rather than instantaneous power. Therefore, frequency does not affect the power delivered in this scenario. Understanding these principles is crucial for analyzing AC circuits effectively.
Passionate Eng
Messages
36
Reaction score
1
If I have tow sinusoidal voltage sources, one with 50Hz frequency and the other with 60Hz.
which one of them will deliver more power if connected to 1 ohm resistor?
 
Engineering news on Phys.org
Neither. Each will deliver the same power in watts.
-
Edit: This assumes both sources provide the same voltage.
 
  • Like
Likes davenn and anorlunda
Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
Thread 'Weird near-field phenomenon I get in my EM simulation'
I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
Back
Top