Physics
Physics, 01.07.2019 21:30, jayc36809

Electromagnets are created by (2 points) a. applying a charge to a magnetic material, wrapped in an insulator, which creates an electromagnetic field around the magnet. b. covering a magnet with insulation and applying an alternating electrical current to the magnet. c. twisting a ferromagnetic material, wrapping in an insulator, and applying a direct current to the coil. d. wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current. question 2 if you were asked to describe metals and magnetism you could say that (2 points) a. all metals are attracted to magnets because they are able to create their own magnetic field. b. all metals are attracted by magnets; this is why we call metals ferromagnetic. c. only some metals are attracted to magnets because they do not have a magnetic field. d. only some metals are attracted by magnets; these metals are called ferromagnetic. question 3 in order to create an electromagnet, you would (2 points) a. apply a charge to a non-magnetic material in order to create an electromagnetic field. b. coil a ferromagnetic material, wrap in an insulator, and apply a direct current to the coil. c. cover a wire with insulation and apply an alternating electrical current to the magnet. d. wrap an insulated wire around a metal with ferromagnetic properties and apply an electric current. question 4 when discussing magnetic fields we could say that (2 points) a. metals can become magnetic if they have many spinning electrons that create magnetic fields. b. metals are magnets because they have more electrons than non-magnetic materials. c. non-paired electrons spin in opposite directions creating a magnetic field. d. the spinning electrons in some atoms pair up and create a magnetic field. question 5 which statement correctly describes magnetism? (2 points) a. metals can become magnetic if they have many spinning electrons that create magnetic fields. b. metals are magnets because they have more electrons than non-magnetic materials. c. non-paired electrons spin in opposite directions creating an imbalance that creates a magnetic field. d. the electrons in some metals pair up to create a magnetic field. question 6 which statement is true about magnetic poles? (2 points) a. north and south poles repel each other. b. north and south poles attract each other. c. two south poles will attract each other. d. two north poles will attract each other. pls need

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