A transformer works because (select all that are true): Group of answer choices a. Time varying magnetic fields passing through a coil of wire will induce a voltage. b. Time varying current will produce a time varying magnetic field. c. Transformers only work in the movies, they are not real d. Electron beams can be steered by a magnetic field e. Increasing the number of coils will increase the magnetic field produced by a current f. Transistors inside the transformer exchange voltage for current

On a average work day more than work place firs are reorted

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false