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genyjoannerubiera
16.03.2020 •
Physics
You need to design a 60.0-Hz ac generator that has a maximum emf of 5200 V. The generator is to contain a 180-turn coil that has an area per turn of 0.94 m2. What should be the magnitude of the magnetic field in which the coil rotates?
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Ответ:
0.082 T
Explanation:
Given:
Frequency of the generator (f) = 60.0 Hz
Maximum emf of the generator (E) = 5200 V
Number of turns (N) = 180
Area per turn (A) = 0.94 m²
Magnetic field magnitude (B) = ?
We know that, the angular frequency of the generator is given as:
Plug in the value of 'f' and solve for 'ω'. This gives,
Now, the maximum emf of the generator is given by the formula:
Rewriting in terms of magnetic field, 'B', we get:
Plug in the given values and solve for 'B'. This gives,
Therefore, the magnitude of the magnetic field in which the coil rotates is 0.082 T.
Ответ:
In the early 1800s, the english chemist john dalton performed a number of experiments that eventually led to the acceptance of the idea of atoms. he formulated the first atomic theory since the “death of chemistry” that occurred during the prior 2000 years.