Lab Practical Circuit. Find Unknown Resistance.

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SUMMARY

The discussion focuses on determining the unknown resistance R2 in a circuit where R3 is known to be 1000 ohms. The proposed method involves measuring the voltage across R3 to calculate the current flowing through it. By applying Ohm's Law and using the potential difference (6 volts minus the voltage across R3), the value of R2 can be accurately calculated. Participants confirm the validity of this approach, ensuring clarity in the circuit analysis process.

PREREQUISITES
  • Understanding of Ohm's Law
  • Basic circuit analysis techniques
  • Ability to measure voltage and current
  • Familiarity with resistance calculations
NEXT STEPS
  • Learn advanced circuit analysis techniques
  • Study the application of Kirchhoff's laws in circuit design
  • Explore the use of multimeters for accurate voltage and current measurements
  • Investigate the effects of series and parallel resistances on total resistance
USEFUL FOR

This discussion is beneficial for electrical engineering students, hobbyists working on circuit projects, and anyone interested in practical applications of resistance measurement in electrical circuits.

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
 
Last edited:
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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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