What is the current through resistor 2 in a series circuit?

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Homework Help Overview

The problem context involves a series circuit with three resistors, each having a resistance of 3.0 ohms, powered by a 3.0 V battery. The original poster seeks to determine the current through resistor 2.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the need to clarify the total resistance in the circuit, with some noting that the original poster may have misinterpreted the problem. There are attempts to apply Ohm's law and find the equivalent resistance before calculating current.

Discussion Status

The discussion includes various interpretations of the problem, with some participants providing guidance on the correct approach to finding the equivalent resistance and applying Ohm's law. There is no explicit consensus on the correct answer, but productive direction has been provided.

Contextual Notes

Participants note the importance of understanding the units of measurement, specifically that current is measured in Amps, not Ohms. There is also a question about whether to continue the discussion in the same thread for related problems.

alan1592
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Homework Statement


First problem is a series circuit with 3 resistors. R1,R2,R3 is 3.0 ohms. This is all powered by a 3.0 V battery.

What is the current threw resistor 2?


Homework Equations


V=IR


The Attempt at a Solution



3.0=I(3.0)

Divide both sides by 3.0 and I got 1
.. the correct answer is 0.33 OHMs
 
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First of all, the units of current are Amps. I also believe that you misread the question. The total resistance is not 3ohms, instead EACH resistor has a resistance of 3 ohms. So you need to find the equivalent series resistance first, and then apply ohm's law and get the correct answer of 0.33A.
 
erm. . . check your solutions, current is not measured in Ohms.

First, find equivalent resistance, and remember that current thru a series of resistors is the same.
 
Ok I got the right answer. I got the total resistance and divide it by the volts and i got the current. Thanks guys! What if I have another question on this same sort of problem do i make another thread? Or should i just ask here?
 

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