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(a) The diagram shows a bar magnet surro...

(a) The diagram shows a bar magnet surrounded by four potting compasses. Copy the diagram and mark in it the direction of the compass needle for each of the case B, C and D.

(b) Which is the north pole, X or Y ?

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The correct Answer is:
(a) `(##NCERT_PHY_X_C02_E01_025_A01##)`
(b) `X`
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LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  1. Choose the incorrect statement from the following regarding magnetic l...

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  2. Copy the figure given below which shows a plotting compass and a magne...

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  3. (a) The diagram shows a bar magnet surrounded by four potting compasse...

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  4. The three diagrams in the following figure show the lines of force (fi...

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  5. The figure given below shows the magnetic field between two magnets : ...

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  6. Which effect of current can be utilised in detecting a current-carryin...

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  7. State qualitatively the effect of inserting an iron core into a curren...

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  8. Draw the magnetic field lines around a straight conductor carrying cur...

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  9. What is the other name of Maxwell's right-hand thumb rule ?

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  10. State whether the following statement is true or false : The magneti...

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  11. What is the shape of a current-carrying conductor whose magnetic field...

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  12. State three ways in which the strength of an electromagnet can be incr...

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  13. Fill in the following blanks which suitable words : (a) The lines of...

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  14. What is the other name of Maxwell's right-hand thumb rule ?

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  15. What for do we apply clock-rule?

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  16. State and explain the Clock face rule for determining the polarities ...

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  17. Name any two factors on which the strength of magnetic field produced ...

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  18. (a) Draw a circuit diagram to show how a soft iron piece can be transf...

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  19. (a) How does an electromagnet differ from a permanent magnet ? (b) N...

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  20. The strength of the magnetic field between the poles of an electromagn...

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