Physics, 18.10.2019 10:30, emanuelmorales1515

# 1. a step-up transformer increases 15.7v to 110v. what is the current in the secondary as compared to the primary? assume 100 percent efficiency.2. an ideal step-down transformer has a primary coil of 400 turns and a secondary coil of 19 turns. it's primary coil is plugged into an outlet with 120v (ac), from which it draws an rms current of 0.51a. what is the voltage in the secondary coil?

Answers: 1

Physics, 21.06.2019 19:30, noberoger2780

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

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Physics, 22.06.2019 04:10, shifaxoxoxo

Steam enters a well insulated turbine at steady state at p_1=4mpa, t_1=320c and with a velocity v_1 of 10m/s. the steam expands to the turbine exit where pressure is p_2= 0.07 mpa, quality x=0.9 and velocity v_2=90m/a. mass flow rate is 11.92 kg/s. no change in potential energy. a. key words and their meaning b. show the process on a pv diagram c. determine the power developed

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Physics, 22.06.2019 15:50, ksiandua07

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )

Answers: 1

1. a step-up transformer increases 15.7v to 110v. what is the current in the secondary as compared t...

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Mathematics, 24.07.2020 01:01

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Mathematics, 24.07.2020 01:01