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#10 Please answer and explain the answer. For study purposes) thank you. Subject: Electromagnetism

At double the distance from a long current-carrying wire, the strength of the magnetic field produced by that wire
decreases to
a. 1/8 of its original value.
c. 1/2 of its original value.
b. 1/4 of its original value.
d. none of the above.

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#11 Please answer and explain the answer. For study purposes) thank you. Subject: Electromagnetism