Introduction to Electric Energy and Power
Within an electric circuit as illustrated in the figure below, energy is supplied by a battery,
which uses energy from the potential energy (PE) stored in its chemical reactants.
Whenever PE is lost, kinetic energy (KE) is gained by the electrons.
Subsequently, KE is converted to heat due to collisions with other electrons and atoms.
So, energy source ⇒ PE ⇒ KE ⇒ heat.
- P = εI = ΔεI
- ΔVI = IR
- P = (IR)R = I2R
- εI = I2R
Exercises
Exercise-5 on Electric Energy and Power
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Solution to Exercise-5 on Electric Energy and Power
Exercise-6 on Electric Energy and Power
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Solution to Exercise-6 on Electric Energy and Power
Exercise-7 on Electric Energy and Power
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Solution to Exercise-7 on Electric Energy and Power
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Date of last modification: 2022