Ap physics chapter 18 electric current
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AP Physics Chapter 18 Electric Current. Alessandro Volta (1745-1827) invented the electric battery. An electric cell is composed of 1 anode and 1 cathode…a battery is a battery of these cells. An electrolyte is the solution in a cell. The electrode is the metal of the electrode.

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AP Physics Chapter 18 Electric Current

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Ap physics chapter 18 electric current

AP Physics Chapter 18Electric Current

Alessandro Volta (1745-1827) invented the electric battery.

An electric cell is composed of 1 anode and 1 cathode…a battery is a battery of these cells.

An electrolyte is the solution in a cell.

The electrode is the metal of the electrode.

See electric cell and be able to build/sketch all parts.


18 2 electric current

18-2 Electric Current

  • Current (I) is the rate of flow of electrons in a conductor.

  • I= DQ/ Dt

  • See circuit symbols…be able to translate/draw a symbol.

  • See Example 18-1 p531.


18 3 ohm s law resistance and resistors

18-3 Ohm’s Law: Resistance and Resistors

  • Simon Ohm (1787-1854) established experimentally that the current in a metal wire is proportional to voltage.

  • Ohm’s law states V=IR or that current in a conductor is proportional to the voltage, in metal conductors. (See p533)

  • Some materials are non-ohmic.

  • See Example 18-3 p 533.


Homework 18a p 551

HOMEWORK 18a P 551

  • PR#1-10 & 11-14


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