Calculating Capacitance for a Given Energy and Voltage?

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SUMMARY

The discussion centers on calculating the capacitance of a capacitor that stores 0.12 J of energy at a voltage of 6 V. The relevant formula for energy stored in a capacitor is E = 1/2 * C * V^2. By rearranging this formula to solve for capacitance (C), we find C = 2E/V^2. Substituting the given values, C = 2 * 0.12 J / (6 V)^2 results in a capacitance of 4 uF.

PREREQUISITES
  • Understanding of basic electrical concepts, specifically capacitance.
  • Familiarity with the formula for energy stored in capacitors: E = 1/2 * C * V^2.
  • Knowledge of unit conversions, particularly microfarads (uF).
  • Basic algebra skills for rearranging equations.
NEXT STEPS
  • Review the derivation of the energy formula for capacitors: E = 1/2 * C * V^2.
  • Learn about different types of capacitors and their applications in circuits.
  • Explore how to calculate capacitance in series and parallel configurations.
  • Investigate the impact of dielectric materials on capacitance values.
USEFUL FOR

Students studying electrical engineering, electronics enthusiasts, and anyone needing to calculate capacitance in practical applications.

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Homework Statement



A capacitor stores 0.12 J energy when connected to 6 V voltage source. What is the capacitance of this capacitor? (UNIT:uF)

I am just not sure how to go about answering this question.

The formula for capacitance is C=(Q/V), but I am not sure how to incorporate energy into that formula.

Any help would be appreciated

Thanks
 
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E=1/2c*v*v.
 

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