Electricity, Magnetism, Electromagnetism
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| The smallest unit of electrical charge is the | show 🗑
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| show | electrons only
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| Like charges ___________ and unlike charges ____________. | show 🗑
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| show | inversely, directly
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| An electric potential applied to a conductor produces a magnetic field. T or F | show 🗑
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| An electric potential applied to a conductor produces an electric current. T or F | show 🗑
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| show | evenly throughout the object
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| True or False: The charges of an electrified object are concentrated only beneath the surface of the object. | show 🗑
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| What is a source of direct current | show 🗑
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| A generator is a source of direct current. T or F | show 🗑
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| show | generator
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| Ohms law | show 🗑
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| Watts, kilowatts, megawatts, amperes all measure what | show 🗑
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| Rubber and glass are examples of | show 🗑
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| The rotation of electrons on their axis is the properly called | show 🗑
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| show | a magnetic domain
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| What is used to quantify magnetic field strength | show 🗑
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| show | product, square
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| Iron, nickel, & cobalt are all considered _____________ materials and they are made up of small groups of atoms called ______________. | show 🗑
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| show | 240W
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| show | increasing the number loops (turns) in the wire
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| show | induction
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| show | autotransformer
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| Who was responsible for the discovery and determination of electromagnetic induction | show 🗑
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| True or False: Positive electric charges in a circuit flow from positive to negative | show 🗑
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| show | humidity
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| True or false: An ammeter would be a device that measures current | show 🗑
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| show | step up transformer
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| An atom with more electrons than protons will have what charge | show 🗑
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| When an uncharged metallic object experiences a shift of electrons in the electric field of another, this is electrification by | show 🗑
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| T or F: The relationship of xray intensity to distance (inverse square law) is identical to Coulomb's law | show 🗑
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| show | Coulomb's law
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| How are insulators incorporated to the use of electricity | show 🗑
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| show | decreases
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| What type of electric circuit connects all circuit elements along the same conductor | show 🗑
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| Which term describes an electric current whose electrons flow in one direction along a conductor | show 🗑
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| show | its electrons spin predominantly in one direction
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| show | electromagnet
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| Gadolinium is useful in MRI because it has which magnetic property | show 🗑
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| show | 2
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| show | friction
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| show | contact
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| show | true
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| show | true
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| show | volt
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| Materials strongly attracted to magnets are termed | show 🗑
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| the unit of resistance | show 🗑
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| show | diamagnetic (water)
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| show | paramagnetic
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| Which scientist conducted experiments demonstrating that a magnetic field created by a flow of electric current was greater than the Earth's magnetic field (electromagnetism) | show 🗑
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| Which conductor angle, in relation to a magnetic field will produce the greatest voltage | show 🗑
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| show | electric motor
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| show | turns ratio
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| Which electromagnetic device is defined as operating on the principle of mutual induction to change the magnitude of current and voltage | show 🗑
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| show | smaller
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| The magnetic field lines of a solenoid move in what direction | show 🗑
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| show | rectifier
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| What is defined as the force needed to pass a current of 1 ampere thru a resistance of 1 ohm | show 🗑
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| A superconductor must be __________ in order to maintain its superconductivity | show 🗑
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| show | solenoid
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| An electric motor converts | show 🗑
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| show | Faraday's law
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| show | Lenz's law
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| The fundamental unit of electric charge | show 🗑
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| show | amperes
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| momentarily stores electric charge | show 🗑
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| imaginary field lines | show 🗑
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| a small magnet created by the electron orbit | show 🗑
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