What are the parameters in the voltage equation for finding power and current?

  • Thread starter Thread starter challarao
  • Start date Start date
  • Tags Tags
    Current Power
Click For Summary
SUMMARY

The discussion focuses on the parameters of the voltage equation used to find current and power in an electrical circuit. The voltage is given as v = 115.0 sin(185t) V, where 115.0 represents the amplitude in volts and 185 is the angular frequency in radians per second. The relationship between voltage (V), current (I), and resistance (R) is defined by Ohm's Law: V = I * R. A resistance of 50.0 Ω is specified, allowing for the calculation of current and power based on these parameters.

PREREQUISITES
  • Understanding of Ohm's Law (V = I * R)
  • Knowledge of sine wave characteristics in electrical engineering
  • Familiarity with angular frequency and its units (radians/second)
  • Basic concepts of electrical power calculations
NEXT STEPS
  • Calculate current using the formula I = V/R with the given parameters.
  • Explore the concept of power in AC circuits, specifically using P = VI for sinusoidal voltages.
  • Learn about the implications of amplitude and angular frequency on circuit behavior.
  • Investigate the effects of resistance on current and power in different circuit configurations.
USEFUL FOR

Electrical engineering students, circuit designers, and anyone interested in understanding the relationship between voltage, current, and resistance in AC circuits.

challarao
Messages
21
Reaction score
0
1. A 50. 0 Ω resistance has a voltage v = 115.0 sin 185t (V). Find the corresponding current i and power p.



2. Voltage(V)=current(I)*resistance(R)



3. I don't know what 115.0 and 185 are..? Except that all is well..

Please tell me what are the parameters in V equation in the problem..
 
Last edited:
Physics news on Phys.org
115.0 is the amplitude of the voltage, units are (or should be) volts.

185 is the angular frequency for the sine function. It's units are (or should be) radians/second.
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
975
  • · Replies 2 ·
Replies
2
Views
910
Replies
2
Views
2K
Replies
18
Views
3K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 25 ·
Replies
25
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
Replies
1
Views
2K