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Which of the following statements is true about magnetic fields produced by current-carrying wires?

a. the larger the current, the larger the magnetic field
b. the smaller the current, the larger the magnetic field
c. the longer the wire, the larger the magnetic field
d. the longer the wire, the smaller the magnetic field

2 Answers

2 votes
I believe the answer is c. the longer the wire, the larger the magnetic field
answered
User Daniel Mendel
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5 votes
Choice-A is the true one.
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User Schummar
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