Electronic NOCTI Review WCCTC Latest 2023 Graded A+

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Electronic NOCTI Review WCCTC Latest 2023 Graded A+ Permanent Magnets- ✔✔Readily retain their magnetic field for a long period of time Temporary Magnets- ✔✔lose magnetism quickly Two types... of magnets- ✔✔Metallic Magnets & Ceramic Magnets Two Popular Classifications- ✔✔Alcino & Cunife Coulomb's Law- ✔✔Like poles repel and unlike poles attract Flux Lines- ✔✔Lines of magnetic force that surround a magnet Four Basic Rules & Characteristics: ✔✔1. Flux lines have direction or polarity(N+S) 2. The lines o force always form complete loops 3. Flux lines cannot cross each other 4. Flux lines tend to form the smallest possible loops; ex. unlike poles attract Left-hand Magnetic Field Rule: ✔✔• Thumb in direction of current flow • Fingers in direction of flux lines Electromagnetic Induction- ✔✔Action that causes electrons to flow conductor when it moves across a magnetic field The amount of EMF induced in a conductor is determined by 4 factors: ✔✔1. The strength of the magnetic field 2. The speed of the conductor with respect to the field 3. The angle at which the conductor cuts the field 4. The length of the conductor in the field Farraday's Law- ✔✔the voltage induced in the conductor is directly proportional to the rate at which the conductor cuts the magnetic lines of [Show More]

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