A paramagnetic substance has a magnetic moment of at a magnetic field of 0.5 T. What will be its magnetic moment at a magnetic field of 1.5 T?
The magnetic moment of a paramagnetic substance is given by where C is the Curie constant, H is the applied magnetic field, and T is the temperature. Since the temperature is constant, we can assume C to be constant. Using this formula, we can find the magnetic moment at a different magnetic field:
Therefore, the magnetic moment at 1.5 T will be 3 times the magnetic moment at 0.5 T, which is .
The correct answer is (d)