Atransformer connected to a 120 v (rms) ac line is to supply 13,000 v (rms) for a neon sign. to reduce shock hazard, a fuse is to be inserted in the primary circuit; the fuse is to blow when the rms current in the secondary circuit exceeds 8.50 ma.
(a) what is theratio of secondary to primary turns of the transformer?
(b) whatpower must be supplied to the transformer when the rms secondarycurrent is 8.50 ma?
(c) what current rating should the fuse in theprimary circuit have?
Answers: 1
Physics, 22.06.2019 01:20
An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0Β° above the horizontal. it then moves 137 ft at an angle of 48.0Β° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
Answers: 1
Physics, 22.06.2019 09:00
Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack
Answers: 2
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
Answers: 2
Physics, 22.06.2019 19:30
How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,β=2n=4,β=2 electronselectrons =6,β=β=β1n=6,β=2,mβ=β1
Answers: 3
Atransformer connected to a 120 v (rms) ac line is to supply 13,000 v (rms) for a neon sign. to redu...
Health, 09.11.2019 08:31
Mathematics, 09.11.2019 08:31
Mathematics, 09.11.2019 08:31
Biology, 09.11.2019 08:31
English, 09.11.2019 08:31
Mathematics, 09.11.2019 08:31
Business, 09.11.2019 08:31
Social Studies, 09.11.2019 08:31
History, 09.11.2019 08:31