'Current changes direction' diaporamas de présentation

Applications of Sinusoidal derivatives

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Electricity

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Outline Chapter 6a Electricity and Magnetism

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Electric symbols

Electric symbols. Cell and battery of cells. Lamp. Switch. Ammeter. Voltmeter. Resistor. Variable resistor (rheostat). Bell/buzzer. Thermistor. Resistance decreases with increasing temperature. Resistance. Temp. Light-dependent resistor (LDR).

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Electromagnetism

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Section 3: Producing Electric Current

Section 3: Producing Electric Current. Chapter 8: Magnetism and Its Uses. Learning Goals. Describe how a generator produces and electric current. Distinguish between alternating current and direct current. Explain how a transformer can change the voltage of an alternating current.

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Bell work

Bell work. Ethanol, often produced from corn, is being added to gasoline in an attempt to reduce the amount of fossil fuel usage. Which is an unintended consequence of ethanol use? a. cost of corn products increases b. improvement in gas mileage c. conservation of fossil fuels

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ELECTROMAGNETISM

ELECTROMAGNETISM. Magnetism from Electric Currents. CHAPTER 18, Section 2, pages 626-631. 1820: Denmark Hans Christian Oersted. ?. I. The Discovery. 1820. In the year _____, the Danish physicist ____________________ observed that:. Hans Christian Oersted.

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ENGR 111 Lecture 3

ENGR 111 Lecture 3. Reading: Chapters 19, Class notes. Lecture 3: DC Fundamentals . Electrical Charge (q): more or fewer electrons In an atom, # of electrons = # of protons When they differ, electrical charge is present Each electron/proton carries a unit charge

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Electromagnetic Induction

Electromagnetic Induction. Chapter 21. Induced EMF. Galvonometer. Michael Faraday Hoped to induce a current Strong pulse when switch was opened or closed. Steady fields did not induce current Changing magnetic field produces an emf Electromagnetic Induction

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NOTES 36B - Topic 5 - Electricity & Magnetism

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Electromagnetic Induction

Electromagnetic Induction. Principles of Physics. Changing magnetic fields can create a voltage (and thus cause current to flow) in a conductor A wire moving perpendicular to a magnetic field will experience an induced voltage.

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