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Session 4 - Coggle Diagram
Session 4
Video 1: What is an AMP
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In most solid materials the atoms and their electrons are stationary and don't really move. But in objects like copper do. In copper the positive nuclei stays stationary to maintain the structure but the electrons can drift from atom to atom
Electric current is measured in amps and 1 amp is equal to 6.24 x 10 to the power 18 electrons flowing through a certain point in a second
When there is excess voltage, a light bulb can blow up; a resistor can stop this. Resistance is measured in ohms.
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Types of current
Conventional
If you take a circuit attached to a light bulb then Engineers use conventional current to say that electrons move from the positive to the negative side
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Video 3
Voltage: a difference in electric potential energy (per unit of charge) between two points (AKA potential difference, tension)
Volts push current around an electric circuit, behaving as a pushing source, pushing electrons around to create a source
As the voltage increases, the current increases, and the output of this energy is also increased (bulb, motor, etc.)
A chemical reaction is created in the battery, creating a reaction. Since the negative side is more charged, it pushes negative electrons away from itself. Through the wire, the electrons are constantly pushing each other and moving toward the positive side of the battery
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Questionare
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B. Is this supply voltage the same for all the countries in the world? Suggest a reason for your answer.
No, there is not a standard voltage supply in all countries. For example, most countries in Europe use a voltage twice of what USA uses. They use a voltage between 220 and 240 volts, while America uses a voltage is between 100 and 127 volts
C. Is the voltage supplied to the industries the same as that supplied to homes? Why do you think so?
No, the voltage used in factories and other big industries is much more powerful and dangerous, since it's being dealt with experienced professionals who have bigger tasks (to operate factories, etc). Factories use more machines and powers not to mention extra facilities. At home, the voltage required is comparatively smaller.