AP Physics C Electricity and Magnetism Quiz
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MAGNETIC FIELDS AND ELECTROMAGNETISM
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A long, straight wire in vacuum carries I=12 AI=12\ \text{A} upward. Point PP is d=4.0 mmd=4.0\ \text{mm} from the wire. Use B=μ0I2πdB=\dfrac{\mu_0 I}{2\pi d} and μ0=4π×10−7 T⋅m/A\mu_0=4\pi\times10^{-7}\ \text{T}\cdot\text{m/A}. What is the magnitude of the magnetic field at point PP due to the wire?
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