1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is true in respect of diamagnetic susbtances?

A
They are feebly attracted by magnets
B
Permeability is greater than 1000
C
Susceptibility decreases with temperature.
D
Susceptibility is small and negative
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Magnetic hysterisis is exhibited by ............ magnetic materials

A
Only para
B
Only dia
C
Only ferro
D
Both para and ferro
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Magnetic susceptibility of Mg at 300 K is $1.2 \times 10^{-5}$. What is its susceptibility at $200 \mathrm{~K} ?$

A
$18 \times 10^{-5}$
B
$180 \times 10^{-5}$
C
$1.8 \times 10^{-5}$
D
$0.18 \times 10^{-5}$
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

The Curie temperature of cobalt and iron are $$1400 \mathrm{~K}$$ and $$1000 \mathrm{~K}$$ respectively. At $$T=1600 \mathrm{~K}$$, the ratio of magnetic susceptibility of cobalt to that of iron is

A
$$1 / 3$$
B
3
C
$$7 / 5$$
D
$$5 / 7$$
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