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Chapters
2: Mathematical Methods
3: Motion in a Plane
4: Laws of Motion
5: Gravitation
6: Mechanical Properties of Solids
7: Thermal Properties of Matter
8: Sound
9: Optics
10: Electrostatics
11: Electric Current Through Conductors
▶ 12: Magnetism
13: Electromagnetic Waves and Communication System
14: Semiconductors
![Balbharati solutions for Physics [English] 11 Standard Maharashtra State Board chapter 12 - Magnetism - Shaalaa.com](/images/physics-english-11-standard-maharashtra-state-board_6:314f14dcb519476f83adce5380e7a92f.jpg "Balbharati solutions for Physics [English] 11 Standard Maharashtra State Board chapter 12 - Magnetism")
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Solutions for Chapter 12: Magnetism
Below listed, you can find solutions for Chapter 12 of Maharashtra State Board Balbharati for Physics [English] 11 Standard Maharashtra State Board.
Balbharati solutions for Physics [English] 11 Standard Maharashtra State Board 12 Magnetism Exercises [Pages 227 - 228]
Choose the correct option.
Let r be the distance of a point on the axis of a bar magnet from its center. The magnetic field at r is always proportional to
`1/"r"^2`
`1/"r"^3`
`1/"r"`
not necessarily `1/"r"^3` at all points
Choose the correct option.
Magnetic meridian is the plane
perpendicular to the magnetic axis of Earth
perpendicular to geographic axis of Earth
passing through the magnetic axis of Earth
passing through the geographic axis
Choose the correct option.
The horizontal and vertical component of magnetic field of Earth are same at someplace on the surface of Earth. The magnetic dip angle at this place will be
30°
45°
0°
90°
Choose the correct option.
Inside a bar magnet, the magnetic field lines
are not present
are parallel to the cross-sectional area of the magnet
are in the direction from N pole to S pole
are in the direction from S pole to N pole
Choose the correct option.
A place where the vertical components of Earth's magnetic field is zero has the angle of dip equal to
0°
45°
60°
90°
Choose the correct option.
A place where the horizontal component of Earth's magnetic field is zero lies at
geographic equator
geomagnetic equator
one of the geographic poles
one of the geomagnetic poles
Choose the correct option.
A magnetic needle kept nonparallel to the magnetic field in a nonuniform magnetic field experiences
a force but not a torque
a torque but not a force
both a force and a torque
neither force nor a torque
Answer the following question in brief.
What happens if a bar magnet is cut into two pieces transverse to its length/along its length?
Answer the following question in brief.
What is the unit of Magnetic Intensity?
Answer the following question in brief.
What could be the equation for Gauss' law of magnetism, if a monopole of pole strength p is enclosed by a surface?
Answer the following question in detail.
Explain Gauss's law for magnetic fields.
What is a geographic meridian?
Answer the following question in detail.
How does the magnetic declination vary with latitude? Where is it minimum?
Answer the following question in detail.
Define the Angle of Dip.
What happens to the angle of dip as we move towards magnetic pole from magnetic equator?
Solve the following problem.
A magnetic pole of a bar magnet with a pole strength of 100 A m is 20 cm away from the centre of a bar magnet. The bar magnet has a pole strength of 200 A m and has a length of 5 cm. If the magnetic pole is on the axis of the bar magnet, find the force on the magnetic pole.
Solve the following problem.
A magnet makes an angle of 45° with the horizontal in a plane making an angle of 30° with the magnetic meridian. Find the true value of the dip angle at the place.
Solve the following problem.
Two small and similar bar magnets have a magnetic dipole moment of 1.0 Am2 each. They are kept in a plane in such a way that their axes are perpendicular to each other. A line drawn through the axis of one magnet passes through the center of other magnet. If the distance between their centers is 2 m, find the magnitude of the magnetic field at the midpoint of the line joining their centers.
Answer the following question in detail.
A circular magnet is made with its north pole at the centre, separated from the surrounding circular south pole by an air gap. Draw the magnetic field lines in the gap.
Answer the following question in detail.
Draw a diagram to illustrate the magnetic lines of force between the south poles of two such magnets.
Answer the following question in detail.
Two bar magnets are placed on a horizontal surface. Draw magnetic lines around them. Mark the position of any neutral points (points where there is no resultant magnetic field) on your diagram.
Solutions for 12: Magnetism
Balbharati solutions for Physics [English] 11 Standard Maharashtra State Board chapter 12 - Magnetism
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Concepts covered in Physics [English] 11 Standard Maharashtra State Board chapter 12 Magnetism are Introduction to Magnetism, Magnetic Lines of Force and Magnetic Field, The Bar Magnet, Gauss' Law of Magnetism, The Earth’s Magnetism.
Using Balbharati Physics [English] 11 Standard Maharashtra State Board solutions Magnetism exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board Physics [English] 11 Standard Maharashtra State Board students prefer Balbharati Textbook Solutions to score more in exams.
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