Calculating Current in a Basic Resistor Circuit

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SUMMARY

The discussion focuses on calculating the current flowing through resistor R1 in a basic resistor circuit powered by a 12-volt battery. The resistors in the circuit are R1 at 9 ohms, R2 at 6 ohms, and R3 at 5 ohms. To find the current through R1, participants emphasize the need to first determine the equivalent resistance of the circuit using the formula R=V/I. This foundational step is crucial for accurately calculating the current.

PREREQUISITES
  • Understanding of Ohm's Law (V=IR)
  • Basic knowledge of series and parallel resistor circuits
  • Familiarity with calculating equivalent resistance
  • Proficiency in using SI units for voltage and resistance
NEXT STEPS
  • Learn how to calculate equivalent resistance in series and parallel circuits
  • Study the application of Ohm's Law in complex circuits
  • Explore circuit simulation tools like LTspice for practical understanding
  • Investigate the impact of resistor values on current flow in circuits
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Students studying electrical engineering, educators teaching circuit analysis, and hobbyists interested in basic electronics.

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Homework Statement


In the pictured, the battery puts out 12 volts, R1 is 9 ohms, R2 is 6 ohms, and R3 is 5 ohms.

What current flows through resistor R1?

Please use only SI (metric) system units in your answer!


Homework Equations



R=V/I ?

The Attempt at a Solution



I am completely lost...
 

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Can you find the equivalent resistance of the circuit?
 

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