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State Lenz's law....

State Lenz's law.

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Lenz.s Law states that, the induced current is always in such a direction as to oppose the cause which produces it.
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SUBHASH PUBLICATION-SUPPLEMENTARY EXAM QUESTION PAPER JUNE 2018-QUESTION
  1. What is 'retentivity' in magnetism ?

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  2. Where on the earth.s surface is the magnetic dip zero ?

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  3. State Lenz's law.

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  4. Write the condition for .resonance. of series LCR circuit.

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  5. What is wattless current?

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  6. A blue ray of light enters an optically denser medium from air. What h...

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  7. ""(92)U^(238) undergoes alpha-decay giving rise to thorium. What is th...

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  8. Represent graphically the variation of resistivity with absolute tempe...

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  9. Write an expression for cyclotron frequency and explain the terms .

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  10. State and explain 'Curie's Law' in magnetism .

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  11. Mention any two factors on which the self inductance of a coil depends...

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  12. Give any two applications of ultraviolet radiations.

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  13. What is polarisation of light ? Name any one method of producing plane...

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  14. Calculate de Broglie wavelength associated with an electron moving wit...

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  15. Write any two advantages of Light Emitting Diode (LED) over convention...

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  16. Write any three properties of magnetic field lines.

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  17. Obtain an expression for effective Capacitance of two Capacitors Conne...

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  18. Distinguish between diamagnetic and paramagnetic substances.

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  19. Describe the coil and barmagnet experiment to demonstrate the phenomen...

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  20. Derive the expression for effective focal length of two thin lenses ke...

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