HARD
JEE Main/Advance
IMPORTANT
Earn 100

The magnetic field lines inside a bar magnet

81.48% studentsanswered this correctly

Important Questions on Magnetism and Matter

HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.1>Q 11
A bar magnet used in vibration magnetometer is heated to reduce the magnetic moment by 36%. Neglecting all other changes in dimensions, the time period of bar magnet in same magnetic field
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 12
According to Curies law, the magnetic susceptibility of a substance at the absolute temperature T is proportional to
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 13
The susceptibility of paramagnetic material is K at 27°C. At what temperature will its susceptibility be 0.5 K ?
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 14
Relative permeability of iron is 5500 . Its magnetic susceptibility is
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 15
An example for diamagnetic substance is
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 17
Which of the following is incorrect?
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 18
The permeability of a specimen decreases drastically above certain temperature. The specimen could be
HARD
JEE Main/Advance
IMPORTANT
Gamma Question Bank for Engineering Physics>Chapter 19 - Magnetism and Matter>EXERCISE 5.2>Q 19
Which of the following materials would weaken the magnetic field strength at a point if introduced?