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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
- What is the direction of force of friction acting on a moving object?
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- When does static friction come into play ?
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- What is meant by air resistance ?
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- Define SI unit of magnetic flux density.
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- What are dimensions of tesla?
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- Write down the Biot-Savart's Law in vector form.
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- State Ampere's circuital law.
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- What is one ampere current?
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- Write the expresion for Lorentz force acting on a charged particle.
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- Why is it possible to write on rough blackboard with chalk ?
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- Why is it difficult to walk on ice ?
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- Define the term magnetic moment.
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- What is magnetic moment of a current loop?
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- A magnetic dipole is placed in a uniform magnetic fields, B, when the...
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- Define dip at a place.
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- What is magnetic susceptibility?
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- What is Curie's law?
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- 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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