Electrical current and Resistance and Energy

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SUMMARY

The discussion centers on calculating resistance and energy loss in an electrical circuit using a 12V battery and a current of 0.60A. The resistance is determined to be 20 ohms using the formula R = V/I. Additionally, the energy lost by the battery over one minute is calculated using the relationship between power and energy, leading to a conclusion that the correct approach involves multiplying rather than dividing when calculating energy loss.

PREREQUISITES
  • Understanding of Ohm's Law (R = V/I)
  • Basic knowledge of electrical current (Amperes)
  • Familiarity with energy calculations (Joules)
  • Ability to manipulate algebraic equations
NEXT STEPS
  • Learn about calculating electrical energy using the formula E = P × t
  • Explore the concept of power in electrical circuits (P = V × I)
  • Study the relationship between voltage, current, and resistance in more complex circuits
  • Investigate the effects of different resistor values on current flow
USEFUL FOR

Students studying electrical engineering, physics enthusiasts, and anyone looking to deepen their understanding of basic electrical principles and calculations.

mer584
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Homework Statement


A 12v battery causes a current of .60A through a resistor. a) what is the resistance? and b) how many joules of energy does the battery lose in 1 minute?


Homework Equations


R= V/I; I= Q/T


The Attempt at a Solution


I understand part A that is just algebra and I got 20 ohms,
but I don't know how to translate this into energy lost. Can I use that second equation somehow with 60 seconds?
 
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never mind i figured it out i was dividing instead of multiplying!
 

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