A tightly wound toroid of inner radius 1 cm and outer radius 2 cm has 890 turns of wire and carries a current of 2.1 A. What is the magnetic field a distance 1.5 cm from the center?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

The solid that is formed and usually sinks to the bottom of a solution is the