How to Calculate Resistance and Voltage in Combination Circuits?

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To calculate the equivalent resistance in a combination circuit with resistors R1 (3.28 ohms), R2 (3.28 ohms), and R3 (6.58 ohms), the user is seeking assistance due to confusion over the calculations. The fundamental equation v = ir is noted, but the user is struggling specifically with finding the equivalent resistance, which is crucial for determining voltage and current readings at various points in the circuit. A request for guidance on these calculations is made, along with an attempt to share a visual reference that unfortunately does not function. The discussion emphasizes the importance of understanding equivalent resistance to solve for voltmeter and ammeter readings effectively.
jeffc93
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Homework Statement



The circuit at the right is a combination circuit. The resistance values are

R1 = 3.28
R2 = 3.28
R3 = 6.58

Determine the equivalent resistance (for the combination of three resistors), the voltmeter readings and the ammeter readings at the indicated locations.

R-eq =
V1 =
V3 =
I1 =
I2 =
I3 =



Homework Equations



v=ir


The Attempt at a Solution



i need to find these.. i can't get the Equivilent resistance and that's messing me up on everything else. if someone could show me how to get this stuff itd be really appreciated!

heres the picture that goes with it!

http://tinypic.com/view.php?pic=1zzsxsm&…

thanks!
 
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Hi jeffc93! :smile:

Your link isn't working. :redface:
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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