EASY
12th Andhra Pradesh Board
IMPORTANT
Earn 100

Define magnetic declination.

Important Questions on Magnetism and Matter

EASY
12th Andhra Pradesh Board
IMPORTANT
Define magnetic inclination or angle of dip.
EASY
12th Andhra Pradesh Board
IMPORTANT
Classify the following materials with regard to magnetism: Manganese, cobalt, Nickel, Bismuth, Oxygen, Copper.
MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Derive an expression for the axial field of a solenoid of radius r containing n turns per unit length and carrying current i.
EASY
12th Andhra Pradesh Board
IMPORTANT
The force between two magnet poles separated by a distance d in the air is F. At what distance between them does the force become doubled?
MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Compare the properties of paramagnetic, diamagnetic and ferromagnetic substances.
MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Explain the elements of the Earth's magnetic field and draw a sketch showing the relationship between the vertical component, horizontal component and angle of dip.
MEDIUM
12th Andhra Pradesh Board
IMPORTANT
Define retentivity and coercivity. Draw the hysteresis curve for soft iron and steel. What do you infer from these curves?
EASY
12th Andhra Pradesh Board
IMPORTANT
If B1 is the magnetic field produced at the centre of a circular coil of one turn of length L carrying current I, then what is the magnetic field at the centre of the same coil which is made into 10 turns.