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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
- Give three harmful effects of friction.
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- Why is friction essential ?
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- Why is a voltmeter connected in parallel with a circuit?
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- Why an ammeter should have as low resistance as possible?
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- Why should a voltmeter have as large resistance as possible?
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- Find the following expression for the magnetic moment of an electron m...
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- What is voltmeter? How galvanometer converted to a voltmeter?
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- A rectangular coil carrying current is placed in a uniform magnetic fi...
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- Find an expression for the magnetic field at a point on the axis of a ...
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- Friction opposes the between the surfaces in contact with each other.
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- Friction depends on the of surfaces.
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- Find the magnetic field due to a short bar magnet at any point on axia...
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- Friction produces
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- A magnetic dipole is placed in a uniform magnetic fields, B, when the...
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- Name three elements required to specify the earth’s magnetic field at ...
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- The sprinkling of powder on the carrom board friction
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- Sliding friction is than the static friction
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- What is meant by hysteresis loop? What type of magnetic material is us...
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- How can a magnetic field be produced without using a magnet?
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- Is the source of magnetic field analogue to the source of electric fie...
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