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Which of the following statements is fal...

Which of the following statements is false ?

A

The direction of magnetic field lines is from north pole to south pole

B

If magnetic field lines are closer, there is strong magnetic field

C

The magnetic field lines form closed loops.

D

The magnetic field lines can cross one another.

Text Solution

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The correct Answer is:
D
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ZEN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT -Additional question section (Multiple choice question)
  1. No force acts on a current-carrying conductor when it is placed

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  2. The device used for producing electric current is called

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  3. Which of the following statements is false ?

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  4. According to the right-hand thumb rule, thmb indicates the direction o...

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  5. The direction of a magnetic field can be determined using

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  6. The magnetic field at the centre of the current carrying coil :

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  7. Which of the following has a magnetic field like that of a bar magnet...

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  8. In which of the following cases is no current induced in the loop ?

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  9. Which of the four rings has the strongest magnetic field at its cent...

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  10. The strength of the magnetic field produced in a current-carrying stra...

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  11. Choose the correct option. The magnetic field inside a long straig...

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  12. The current passing through two separate circuits of our houses is ...

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  13. A magnetic field does not exert a force on

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  14. Which coloured insulation cover is used for earthing wire ?

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  15. Connecting too many appliances in a circuit causes

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  16. At the time of a short circult, the current in the circuit.

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  17. Commercial electric motors do not use

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  18. Choose the incorrect statement.

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  19. The strength of the magnetic field inside a long current-carrying stra...

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  20. The right-hand thump rule was stated by

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