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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
- What is Curie temperature of a ferromagnetic material? Give one exampl...
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- Name one ferromagnetic substance,
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- What are dimensions of mu0
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- Name one paramagnetic substance.
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- What is magnetic hysteresis?
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- State two factors on which the sensitivity of a moving coil galvanomet...
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- What is voltage sensitivity of a galvanometer?
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- Can we have surfaces with zero friction ?
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- Find an expression for the magnetic field at a point on the axis of a ...
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- A ball is set rolling on the ground. Will it stop by itself ? Why ?
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- A charged particle enters a magnetic field with a velocity v in a dire...
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- Find an expression for the magnetic field at a point on the axis of a ...
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- Give three factors on which the frictional force in fluids depends.
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- 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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