The Magnetic Field at a Distance of 2 Cm from a Long

question 30

Multiple Choice

The magnetic field at a distance of 2 cm from a long straight current-carrying wire is 4 μT.What is the magnetic field at a distance of 1 cm from this wire?

• A)2 μT
• B)4 μT
• C)6 μT
• D)8 μT
• E)10 μT

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