Which of the following substances is a compound? O A. hydrogen gas
B. nitrogen gas
O c. table sugar
O D. oxygen gas

Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.