Max Power of Resistor in 3-Resistor Circuit

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SUMMARY

The discussion centers on calculating the maximum voltage across each of three 100-ohm resistors in a circuit, given that the maximum power delivered to any resistor is 28.0 W. The relevant equations used include P = VI and P = V^2/R. The user successfully determined that the maximum voltage across each resistor can be derived from the maximum current flowing through the circuit, which is calculated from the power rating.

PREREQUISITES
  • Understanding of Ohm's Law (P = VI)
  • Familiarity with power calculations in electrical circuits
  • Knowledge of series and parallel resistor configurations
  • Ability to manipulate equations involving voltage, current, and resistance
NEXT STEPS
  • Calculate maximum current using the formula I = P/V for the given power rating.
  • Explore series and parallel resistor combinations to understand voltage distribution.
  • Learn about power ratings and safety limits for electrical components.
  • Investigate the implications of resistor tolerance on circuit performance.
USEFUL FOR

Electrical engineering students, hobbyists designing circuits, and anyone involved in power management and resistor applications in electronics.

complexc25
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Homework Statement


Three 100 resistors are connected as shown in the figure. The maximum power that can safely be delivered to anyone resistor is 28.0 W.
"[URL=[PLAIN]http://imageshack.us[/URL]

Homework Equations


P = VI

The Attempt at a Solution


I found the total resistance of the circuit, but i don't know how to get the current, which i need for the voltage
 
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The maximum current flows through the resistor on the left. So, if you calculate that current (from the power), you can get the voltage by using Ohm's law.

I'm not sure if this is correct.
 
Could you be a little more clear about what you want to solve? For example do you want voltage across any particular resistor or voltage between A and B?
P=V^2/R
 
never mind ...i found the answer. What i wanted was the maximum voltage to each resistor.
 

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