Equivalent Resistance in series circuit

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Homework Help Overview

The problem involves calculating the equivalent resistance and current in a series circuit containing three resistors with specified values, as well as determining the power delivered to one of the resistors when connected to a voltage source.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the application of formulas for current and power in series circuits, with some questioning the method of calculating current for multiple resistors.

Discussion Status

Some participants have provided guidance on the relationship between current and resistance in series circuits, while others are clarifying the calculations related to power and current. There appears to be an ongoing exploration of the correct approach to the problem.

Contextual Notes

Participants are working within the constraints of a homework assignment, which may limit the information they can use or the methods they can apply.

matt72lsu
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Homework Statement


Three resistors with values of 7.0 Omega, 12 Omega, and 16 Omega are connected in series in a circuit with a 9.0 V battery.
a) What is the total equivalent resistance?
b) What is the current in each resistor?
c) At what rate is energy delivered to the 16 Omega resistor?

Homework Equations



I= V/Rs
P = V^2 /R ?

The Attempt at a Solution


I got "a" but missed "b". i used the first equation and got .26 then divided that by 3 but I guess that's not what you do. For "c" i really have no clue. help!
 
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In series connection the current is the same in all the resistances.
For "c", the power can also be written as P = I^2*R.
 
so for b the answer would be just .26 and not divide by 3?
 
Yes.
 
thanks!
 

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