In a television set the power needed to operate the picture tube comes from the secondary of a transformer. the primary of the transformer is connected to a 120-v receptacle on a wall. the picture tube of the television set uses 91 w, and there is 5.5 ma of current in the secondary coil of the transformer to which the tube is connected. find the turns ratio ns/np of the transformer.
Answers: 2
Other questions on the subject: Physics
Physics, 22.06.2019 16:50, JeroMii
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
You know the right answer?
In a television set the power needed to operate the picture tube comes from the secondary of a trans...
Questions in other subjects:
English, 10.02.2021 22:10
Biology, 10.02.2021 22:10
Mathematics, 10.02.2021 22:10
Social Studies, 10.02.2021 22:10
Mathematics, 10.02.2021 22:10
Mathematics, 10.02.2021 22:10
