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प्रश्न
Which of the following has a permeability less than that of free space?
विकल्प
Copper
Aluminium
Copper chloride
Nickel
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उत्तर
Copper
Explanation:
It is diamagnetic, meaning it weakly opposes magnetic fields. This gives it a magnetic permeability slightly less than that of free space (μ₀).
संबंधित प्रश्न
A meter gauge train is heading north with speed 54 km/hr in earth's magnetic field 3 x 10-4T. The e.m.f. induced across the axle joining the wheels is ..........
(a) 0.45 mV
(b) 4.5 mV
(c) 45 mV
(d) 450 m V
A paramagnetic gas has 2.0 × 1026 atoms/m with atomic magnetic dipole moment of 1.5 × 10−23 A m2 each. The gas is at 27°C.
- Find the maximum magnetization intensity of this sample.
- If the gas in this problem is kept in a uniform magnetic field of 3 T, is it possible to achieve saturation magnetization? Why?
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Metals getting magnetised by orientation of atomic magnetic moments in external magnetic field are called ______.
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From molecular view point, discuss the temperature dependence of susceptibility for diamagnetism, paramagnetism and ferromagnetism.
Explain the Domain theory in brief.
