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Choose the incorrect statement from the ...

Choose the incorrect statement from the following regarding magnetic lines of field:

A

The direction of magnetic field at a point is taken to be the direction in which the north pole of a magnetic compass needle points.

B

Magnetic field lines are closed curves

C

If magnetic field lines are parallel and equidistant, they represent zero field strength

D

Relative strength of magnetic field is shown by the degree of closeness of the field lines

Text Solution

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The correct Answer is:
C
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LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  1. A plotting compass is placed near the south pole of a bar magnet. The ...

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  2. The metallic pointer of a plotting compass gets deflected only when i...

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  3. Choose the incorrect statement from the following regarding magnetic l...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  17. What for do we apply clock-rule?

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

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

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

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