Alimentând o bobină cu tensiunea continuă U=120V, prin
circuit se stabilește un curent I=10A. Dacă la bornele aceleiași
bobine se aplică o tensiune alternativă cu valoarea efectivă U1 =U și frecvența ϑ=50Hz, valoarea efectivă a curentului electric prin circuit este I1 =6A. Să se calculeze:
a) rezistența și inductanța bobinei;
b) reactanța inductivă și impedanța bobinei pentru frecvența de lucru ϑ=50Hz.
Answers: 3
Physics, 22.06.2019 00:30
Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine
Answers: 1
Physics, 22.06.2019 03:00
If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star
Answers: 3
Physics, 22.06.2019 07:40
An object's buoyant force and weight mean the same thing.a. trueb. false
Answers: 2
Physics, 22.06.2019 14:00
Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
Answers: 3
Alimentând o bobină cu tensiunea continuă U=120V, prin
circuit se stabilește un curent I=10A. Dacă...
Mathematics, 13.10.2020 01:01
Mathematics, 13.10.2020 01:01
Mathematics, 13.10.2020 01:01
English, 13.10.2020 01:01
History, 13.10.2020 01:01
Mathematics, 13.10.2020 01:01
English, 13.10.2020 01:01
Geography, 13.10.2020 01:01