Electricity

OpenStax

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Introduction to electric charge and electric field

Static electricity and charge: conservation of charge

1 Charge carried by electrons and protons

2 Separation of charge in atoms

3 Section summary

4 Conceptual questions

5 Problems & Exercises

Coulomb’s law

Electric field: concept of a field revisited

1 Concept of a field

2 Section summary

3 Conceptual questions

4 Problem exercises

Electric field lines

Electric forces in biology

1 Polarity of water molecules

2 Section summary

3 Conceptual question

Applications of electrostatics

Electric potential energy: potential difference

1 The electron volt

2 Conservation of energy

3 Section summary

4 Conceptual questions

5 Problems & Exercises

Equipotential lines

1 Section summary

2 Conceptual questions

3 Problems & Exercises

Ohm’s law: resistance and simple circuits

Electric power and energy

Alternating current versus direct current

1 Alternating current

2 Why use ac for power distribution?

3 Section summary

4 Conceptual questions

5 Problem exercises

Electric hazards and the human body

1 Thermal hazards

2 Shock hazards

3 Section summary

4 Conceptual questions

5 Problem exercises

Source: OpenStax, Concepts of physics. OpenStax CNX. Aug 25, 2015 Download for free at https://legacy.cnx.org/content/col11738/1.5

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