1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment $$\mu $$ is given by
A
$$qv{R^2}$$
B
$$qv{R^2}/2$$
C
qvR
D
qvR/2
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature, then it will show
A
anti ferromagnetism
B
no magnetic property
C
diamagnetism
D
paramagnetism.
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Curie temperature above which
A
paramagnetic material becomes ferromagnetic material
B
ferromagnetic material becomes diamagnetic material
C
ferromagnetic material becomes paramagnetic material
D
paramagnetic material becomes diamagnetic material
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material are denoted by $$\mu $$d, $$\mu $$p and $$\mu $$f respectively, then
A
$${\mu _d} = 0$$ and $$\mu $$p $$ \ne $$ 0
B
$$\mu $$d $$ \ne $$ 0 and $$\mu $$p = 0
C
$$\mu $$p = 0 and $$\mu $$f $$ \ne $$ 0
D
$$\mu $$d $$ \ne $$ 0 and $$\mu $$f $$ \ne $$ 0.
NEET Subjects
EXAM MAP