Physics, 03.02.2020 15:52, mackaylabarnes22
Electricity is distributed from electrical substations to neighborhoods at 15,000 v. this is a 60 hz oscillating (ac) voltage. neighborhood transformers, seen on utility poles, step this voltage down to the 120 v that is delivered to your house. a. how many turns does the primary coil on the transformer have if the secondary coil has 100 turns? b. no energy is lost in an ideal transformer, so the output power p out from the secondary coil equals the input power pin to the primary coil. suppose a neighborhood transformer delivers 250 a at 120 v. what is the current in the 15,000 v line from the substation?
Answers: 2
Physics, 21.06.2019 22:30, blessing5266
Distinguish between a transverse wave and a longitudinal wave.
Answers: 1
Physics, 22.06.2019 17:00, agelafa
Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?
Answers: 1
Electricity is distributed from electrical substations to neighborhoods at 15,000 v. this is a 60 hz...
History, 01.05.2021 04:00
History, 01.05.2021 04:00
Mathematics, 01.05.2021 04:00
Mathematics, 01.05.2021 04:00
Biology, 01.05.2021 04:00
History, 01.05.2021 04:00
Mathematics, 01.05.2021 04:00