Question 1). two identical wires are both carrying the same amount of current flowing in the same direction. when these wires are brought close to each other they will a. repel. b. attract. c. neither repel nor attract. d. cancel out each other's magnetic fields. question 2). a maglev is a type of train that rides on a "cushion of magnetism." these trains can attain very high speeds because a. friction is greatly reduced. b. gravity is reduced on the track. c. the magnetic field of the maglev train is stronger than the magnetic field of the track. d. the magnetic field of the track is stronger than the magnetic field of the maglev train. question 3). a flashlight that needs no batteries can be made by shaking a(n) through a coil of wire. a. magnet b. commutator c. electromagnet d. cylinder of non-magnetized iron question 4). when the electricity flowing into an electromagnet is turned off, the electromagnet a. reverses its polarity. b. gets weaker right away. c. instantly loses its magnetism. d. stays magnetic but gradually gets weaker. question 5). using which of these will not increase an electromagnet's magnetic field? a. a stronger magnet b. more coils in the wire c. a higher-voltage battery d. changing the direction of the current question 6). electric charges produce electric fields. when electric charges flow, electric current is produced and this produces magnetic fields. the interaction of electric and magnetic fields produces a. batteries. b. stronger current. c. stronger magnetism. d. electromagnetic waves.