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Name the rule which gives the direction ...

Name the rule which gives the direction of induced current in a conductor .

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Define the rule used to identify the direction of induced current in an electric generator. How can we increase the amount of electric current produced in the electric generator? Mention the property of the current produced by AC generator. Mention an important advantage of this type of current.

OSWAAL PUBLICATION-Sample Paper 3-Exercise
  1. State Ampere's circuital law and represent it mathematically.

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  2. Give any one use of electromagnet

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  3. Name the rule which gives the direction of induced current in a conduc...

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  4. What is the wavelength range of X-rays ?

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  5. Whrite the expression for displacement current or Maxwell's displaceme...

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  6. How is the power of lens related to its focal length ?

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  7. Who proposed the wave nature of light?

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  8. What is the SI unit of activity?

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  9. Draw the circuit symbol of n-p-n transistor

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  10. Mention and five properties of electric field lines.

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  11. Give an expression for force acting on a charge moving in magnetic fie...

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  12. What is hysterisis? Define the terms 'coercivity' and 'retentivity' of...

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  13. What are eddy currents ? Mention two applications of eddy currents.

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  14. What is a thin prism? Write its deviation expression.

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  15. How do you represent plane polarized and unpolarised light ?

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  16. Define half life of a radioactive element and deduce the expression fo...

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  17. Give three differences between intrinsic and extrinsic semiconductors

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  18. Derive an expression for the electric potential energy of a system of ...

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  19. State and explain Ohm.s law and hence defien ohm.

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  20. Write any four properties of ferromagnetic materials and give an examp...

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