Lab Practical Circuit. Find Unknown Resistance.

AI Thread Summary
To find the unknown resistance R2 in the circuit, measure the voltage across the known resistor R3, which is 1000 ohms, and calculate the current through it. The potential difference across R2 can be determined by subtracting the voltage across R3 from the total voltage. Using Ohm's Law, R2 can then be calculated with the known current. The proposed method for determining R2 is confirmed to be correct.
pradeepk
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Homework Statement


Circuit.png


So I have to wire the circuit and find R2 by only making another voltage measurement. We know that R3 is equal to 1000 ohms.

Homework Equations





The Attempt at a Solution



So I was thinking that you can find the voltage of R3 and the find the current going through R3. When you have those measurements, you can find the R2 because you know the potential difference by (6-Voltage of R3). Then you use the current found previously, and the ohms law. Is this correct? Thank you
 
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Pradeepk, it would appear that your attachment isn't actually attached.
 
gneill said:
Pradeepk, it would appear that your attachment isn't actually attached.

My apologies..it should work now
 
pradeepk said:
My apologies..it should work now

Yes, it's fine now.

Your method for finding R2 is okay.
 
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