The coil of a generator has 50 loops and a cross-sectional area of 0.25 m2. What is the maximum emf generated by this generator if it is spinning with an angular velocity of 4.0 rad/s in a 2.0 T magnetic field?
A) 100. V
B) 50. V
C) 400. V
D) 75. V
E) 0. V
A
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If a crystal as a six-fold axis of symmetry that is perpendicular to a two-fold axis of symmetry this is a(n) _________crystal.
Fill in the blank(s) with the appropriate word(s).
More massive white dwarfs are smaller than less massive white dwarfs
Indicate whether the statement is true or false
What is the minimum distance between two points on the Moon that could be just resolved by the Keck telescope in Hawaii using a wavelength of 600 nm and having perfect optics? The diameter of this telescope mirror system is 10 m, and the distance to
the Moon is 380,000 km.
A layer of water (n = 1.333) floats on carbon tetrachloride (n = 1.461) contained in an aquarium. To the nearest degree, what is the critical angle at the interface between the two liquids?
a. 88° b. 78° c. 66° d. 58° e. 43°