Two toroidal solenoids are wound around the same form so that the magnetic field of one passes through the turns of the other. solenoid 1 has 690 turns and solenoid 2 has 450 turns. when the current in solenoid 1 is 6.60 a, the average flux through each turn of solenoid 2 is 3.50×10-2 wb.

a: what is the mutual inductance of the pair of solenoids?

b: when the current in solenoid 2 is 2.60 a, what is the average flux through each turn of solenoid 1?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.

Which type of energy is transferred by convection currents?