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What distinguishes a conductor from an insulator?
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
Electric circuits provide energy for lightbulbs. Which of these prevents the flow of electrons?
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
Energy is transferred in an electrical circuit through
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
Copper is used in electrical wiring because electrons are
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
Which of these will always produce a magnetic field?
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
Which set of conditions will produce an electric current in a closed loop of wire?
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
If a wool sock is dragged across a rug, there is a buildup of static electricity on the wool sock. Which type of particle is transferred between the rug and the sock to cause this static?
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
A material with a very high electrical resistance is most likely a
moving electrons
free to move between many atoms.
the ease of flow of electrons through the material
an electric current
nonmetallic electrical insulator.
a magnet passing through the loop of wire
a circuit that is open
electrons
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