The world’s most powerful human-made magnet is located in what country? France true United Kingdom false Germany false United States false Single What is the chemical composition of magnetite? Fe₂O₃ false Fe₃O₄ true FeS₂ false Fe false Single Where is the earth's magnetic north pole roughly located? It almost coincides with the geographic north pole false It almost coincides with the geographic south pole true It is located around 0° latitude, 90° longitude north of the equator false It is located around 180° latitude, 90° longitude north of the equator false Single What generates the Earth's magnetic field? The interaction of the atmosphere with the solar wind false The rotation of the Earth's liquid nickel iron core true Decay of iron isotopes deep within Earth's crust false The magnetic minerals present on Earth's crust false Single The magnetic force on a moving charge is the cross product of its velocity and? The magnetic field true The electric field false Its displacement false Its charge false Single What is the direction of the magnetic field experienced by a moving charge if the magnetic force acting on it is directed towards ĵ? Either î or -î false Towards k̂ false Towards -k̂ false Either k̂ or -k̂ true Single A charge experiences the maximal magnetic force when: It is moving parallel to but against the direction of the magnetic field false It is moving parallel to and the same direction as the magnetic field false It is moving perpendicular to a magnetic field true It moves toward an oppositely-charged particle false Single What is the SI unit of the magnetic field? Weber false Lorentz false Tesla true Henry false Single For a given set of magnetic field lines, the direction of the magnetic field is? Parallel and coincidental with that of the field lines false Perpendicular to the field lines at any given point false Always tangent to the field lines at any given point true Determinable only if the field's north and south poles are known false Single What is this type of particle accelerator which makes use of a static magnetic field and rapidly varying electric field to accelerate charged particles outwards from the center along a semicircular path? Cyclotron true Centrifugal false Ballistic false Large Hadron Collider false Single