Solenoid: An ideal solenoid having a coil density of 5000 turns per meter is 10 cm long and carries a current of 4.0 A. What is the strength of the magnetic field at its center?
A. 3.1 mT
B. 6.2 mT
C. 13 mT
D. 25 mT
Answer: D
Physics & Space Science
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Discuss the important features that allow space-based telescopes to search for transiting exoplanets
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According to the standard model, a quark and its antiquark may have the same
a. spin. b. baryon number. c. charge. d. All of the above may be the same.
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If 5.0 × 10^21 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor?
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Physics & Space Science