1
MHT CET (PCB) 2024 22th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Rods ' $A$ ', ' $B$ ' and ' $C$ ' are made of a paramagnetic, a ferromagnetic and a diamagnetic substance respectively. A magnet is brought close to them, it will

A
repel all three substances.
B
attract ' $A$ ' strongly, ' $B$ ' weakly and repel 'C' weakly.
C
attract ' $A$ ' strongly but repel both ' $B$ ' and 'C' weakly.
D
attract ' $A$ ' weakly, ' $B$ ' strongly and repel 'C' weakly.
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
A solenoid is connected to a battery so that a steady current flows through it, If an iron core is inserted into the solenoid, then the current in the coil
A
will not change.
B
will increase.
C
will decrease.
D
may increase or decrease depending upon the direction of the current.
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A solenoid having 400 turns/metre has a core of a material with relative permeability 300 . If a current of 0.5 A is passed through it, then the magnetisation of the core material is nearly

A
$6 \times 10^2 \mathrm{~A} / \mathrm{m}$
B
$6 \times 10^3 \mathrm{~A} / \mathrm{m}$
C
$6 \times 10^4 \mathrm{~A} / \mathrm{m}$
D
$6 \times 10^5 \mathrm{~A} / \mathrm{m}$
MHT CET (Biology) Subjects
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