WorksheetsMagnetism and Matter_1
Total questions: 10
Worksheet time: 5mins
The strength of the earth’s magnetic field is
(a) constant everywhere.
(b) zero everywhere.
(c) having very high value.
(d) vary from place to place on the earths surface.
Which of the following is responsible for the earth’s magnetic field?
(а) Convective currents in earth’s core
(b) Diversive current in earth’s core.
(c) Rotational motion of earth.
(d) Translational motion of earth.
The vertical component of earth’s magnetic field . at a place is √3 times the horizontal component the value of angle of dip at this place is
(a) 30°
(b) 45°
(c) 60°
(d) 90°
The net magnetic flux through any closed surface, kept in a magnetic field is
(a)
(b)
(c)
(d)
Point out the correct direction of magnetic field in the given figures.
(a)
(b)
(c)
(d)
A magnetic needle is kept in a non-uniform magnetic field. It experiences
(a) a torque but not a force.
(b) neither a force nor a torque.
(c) a force and a torque.
(d) a force but not a torque
If Mis magnetic moment and B is magnetic field intensity, then the torque is given by
(a)
(b)
(c)
(d)
Angle between the geographical meridian and magnetic meridian at the given place is known as (a) .
Magnetic moment per unit volume of a material is known as (a) .
The unit of pole strength is (a)
