The magnetic field inside a current- carrying helical spring has amagnitude B. If the spring is pulled out to double the length its originallength, the field inside is now A. 0.5 B B. still B C. 2B D. 4B
The magnetic field inside a current- carrying helical spring has amagnitude B. If the spring is pulled out to double the length its originallength, the field inside is now A. 0.5 B B. still B C. 2B D. 4B
Chapter12: Sources Of Magnetic Fields
Section: Chapter Questions
Problem 12.4CYU: 12.4 Check Your Understanding Two wires, both carrying current out of the page, have a current of...
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The magnetic field inside a current- carrying helical spring has amagnitude B. If the spring is pulled out to double the length its originallength, the field inside is now
A. 0.5 B
B. still B
C. 2B
D. 4B
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