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CBSE Notes 2011-2012 » XII-Physics

Magnetism

Which orientation of a magnetic dipole in a uniform magnetic field will correspond to its stable equ...

Short answer question

Which orientation of a magnetic dipole in a
uniform magnetic field will correspond to its
stable equilibrium ?

What should be the orientation of a magnetic dipole in a uniform magnetic field so that its potentia...

Short answer question

What should be the orientation of a magnetic
dipole in a uniform magnetic field so that its
potential energy is maximum ? [AI 2003]

Steel is preferred for making permanent magnets whereas soft iron is preferred for making electromag...

Short answer question

Steel is preferred for making permanent
magnets whereas soft iron is preferred for
making electromagnets. Give one reason.
[AI 2006]

What is the value of the horizontal component of the earth's magnetic field at magnetic poles ? [AI ...

Short answer question

What is the value of the horizontal component
of the earth's magnetic field at magnetic poles ?
[AI 2005C]

Give two essential characteristics of a material used for preparing an electromagnet. [Foreign 2004]

Short answer question

Give two essential characteristics of a
material used for preparing an electromagnet.
[Foreign 2004]

How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is...

Short answer question

How does the (i) pole strength and
(ii) magnetic moment of each part of a bar
magnet change if it is cut into two equal
pieces transverse to its length ? [Delhi 2003]

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