The current in a long wire creates a magnetic field in the region around the wire. How is the strength of the field at distance r from the wire's center related to the magnitude of the field?
a. field directly proportional to r
c. field directly proportional to r2
b. field inversely proportional to r2
d. field inversely proportional to r
D
Physics & Space Science
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F capacitor for a resonant frequency of 10 kHz?
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An object’s x-acceleration ax (t) is shown in the boxed graph at the top left. Which of the other graphs in the set most correctly describes its x-velocity?
A. A
B. B
C. C
D. D
E. E
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A radio wave signal, which transmits at a frequency of 5.64 MHz, has what wavelength? (c = 3.00 × 10^8 m/s)
a. 532 m b. 106 m c. 53.2 m d. 167 m e. 28.3 m
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What will be an ideal response?
Physics & Space Science