When a sample of liquid is inserted into a solenoid carrying a constant current,the magnetic field inside the solenoid decreases by 0.005%.What is the magnetic susceptibility of the liquid? A)-5 $\times$ 10^-5 B)+5 $\times$ 10^-5 C)3.6 $\times$ 10^-5 D)-3.6 $\times$ 10^-5 E)More information is needed to answer this question.

Question

Quizplus · Accepted Answer

The magnetic susceptibility (χ) is related to the relative change in the magnetic field due to the insertion of the material. A decrease of 0.005% in the magnetic field indicates a negative susceptibility, which means the liquid is diamagnetic. The percentage decrease is converted to a decimal (0.005% = 0.00005), and since susceptibility is defined as the relative change, χ = -0.00005 or -5 x 10^-5, matching choice A.

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