MEDIUM
12th ICSE
IMPORTANT
Earn 100

Obtain an expression for the torque acting on a bar magnet placed in a uniform magnetic field and define magnetic moment. Write also its unit.

Important Questions on Magnetic Field and Earth's Magnetism

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 2
Determine the expression for the magnetic field due to a short bar-magnet (magnetic dipole) at a point on the axis.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 2
Determine the expression for the magnetic field due to a short bar-magnet (magnetic dipole) at a point on the equatorial line of the dipole.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 3
What are the elements of the earth's magnetic field? Show them in a labelled diagram. What is their importance? Write relations among them. How does the value of dip vary from the equator to pole?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 4
What are magnetic lines of force? Give their properties and trace them for a bar-magnet.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 1
Define magnetic dipole moment in terms of current and area of a loop and in terms of pole strength of a magnetic dipole. Write unit of magnetic dipole and pole strength.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 2
Compare current carrying loop and a bar-magnet as a magnetic dipole. Obtain an expression for magnetic field due to a magnetic dipole at equatorial line.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 3
Draw a diagram of Earth's magnetic field, showing a horizontal, vertical component of Earth's magnetic field and angle of dip.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 9 - Magnetic Field and Earth's Magnetism>QUESTIONS>Q 4
Name the places on earth where horizontal and vertical components are minimum and maximum.