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Question
A 0.20-cm radius cylinder, 3.0 cm long, is wrapped with wire to form an inductor. At the instant the magnetic field in the interior is 5.0 mT, the energy stored in the field is:
A) 0 J
B) 3.8 x10-6J
C) 7.5 x10-6J
D) 7.5 x10-4 J
E) 9.9 J
Answer
This answer is hidden. It contains 1 characters.
Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
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Q:
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Q:
An electron participates in:
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Q:
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Q:
For a controlled nuclear fusion reaction, one needs:
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B) high number density nand low temperatureT
C) low number density nand high temperature T
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E) high number density nand temperature T = 0 K
Q:
The first step of the proton-proton cycle is:
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Q:
The purpose of a moderator in a nuclear reactor is to:
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Q:
A certain nucleus, after absorbing a neutron, emits a and then splits into two alpha particles. The (A, Z) of the original nucleus must have been:A) 6, 2B) 6, 3C) 7, 2D) 7, 3E) 8, 4
Q:
Radioactive polonium, 214Po (Z= 84), decays by alpha emission to:
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C) 214At (Z= 85)
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Q:
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Q:
Bombardment of 28Si (Z= 14) with alpha particles may produce:
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