1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

In a permanent magnet at room temperature

A
magnetic moment of each molecule is zero
B
the individual molecules have non zero magnetic moment which are all perfectly aligned.
C
domains are partially aligned
D
domains are all perfectly aligned
2
KCET 2018
MCQ (Single Correct Answer)
+1
-0
Needles $N_1, N_2$ and $N_3$ are made of a ferromagnetic, a paramagnetic and adiamagnetic substance, respectively. A magnet when brought close to them will
A
attract all three of them
B
attract $N_1$ strongly, $N_2$ weakly and repel $N_3$ weakly
C
attract $N_1$ strongly but repel $N_2$ and $N_3$ weakly
D
attract $N_1$ and $N_2$ strongly but repel $N_3$
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
The strength of the Earth's magnetic field is
A
constant everywhere
B
zero everywhere
C
having very high value
D
varying from place to place on the Earth's surface
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0
A jet plane having a wing-span of 25 m is travelling horizontally towards East with a speed of $3600 \mathrm{~km} / \mathrm{hr}$. If the Earth's magnetic field at the location is $4 \times 10^{-4} \mathrm{~T}$ and the angle of dip is $30^{\circ}$, then the potential difference between the ends of the wing is
A
4 V
B
5 V
C
2 V
D
2.5 V
KCET Subjects
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