Shock+Value

[|Series & Parallel Activity]

[|Basic DC Circuit Theory]

[|Circuit Symbols]

[|Wet and Dry Cells]

[|Circuit Theory]

Electromagnetic principles

Use of Electromgnets

Magnetism

l notes are the old notes! DO NOT USE! Batteries have 2 poles; positive and negative. Positive is called carbon anode. Negative is called zinc cathode. This is only for dry celled batteries though. Wet cells were bottles with liquid inside that had to be handled well to avoid spillage.
 * Battery Polarity**

[|Earth's Magnetic Field] The field is caused by swirling iron in the outer core. This causes a magnetic field with a north and south pole, just like a magnet only without one. The North and South poles are 2 things: geographic points where the imaginary axis goes through. The 2nd one is the magnetic pole. These poles are close, but not the geographic ones. That means compasses are always pointing to the magnetic poles, not the geographic, which could be quite a problem near either pole. Either way the field attracts a compass toward the north or south pole; depending on which hemisphere you are in. Then you can tell which direction the magnet's is pointing.
 * Earth's Magnetic Field In a Nutshell:**

The theory of work being able to be accomplished by routing matters through a loop. The three types of matter used:
 * Circuit Theory:**
 * electronic or electrical circuits(electrons and charged ions)
 * pneumatic circuits: compressed gas
 * hydraulic circuits: pressured liquids

**Ohm's Law:**
I(current)=V(Voltage)/R(Resistance)

Where J is the density at any moment of any resistant material, E is the electric field at that location, and //σ// is a material dependent parameter called the conductivity.

**Ampere:**
An ampere, usually known as an amp, is an SI base unit. It is named after André-Marie Ampère, one of the main discoverers of electromagnetism. It is a measure of the amount of electric charge that passed under a point in a certain amount of time. Around 6.242 × 10^18 electrons passing a given point each second constitutes one ampere.

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