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The magnetic field line passing through ...

The magnetic field line passing through the centre of a current-carrying circular ring is

A

circular

B

a straight line

C

an ellipse

D

zero at the centre

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The correct Answer is:
B
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ZEN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT -Additional question section (Multiple choice question)
  1. Who gave the principle of electromagnetic induction ?

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  2. Which instrument detects the presence of electric current in a circui...

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  3. Electromagnetic induction occurs when

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  4. What is electromagnetic induction ?

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  5. No force acts on a current-carrying conductor when it is placed

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  6. Which device produces an electric current ?

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  7. Which of the following statements is false ?

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

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

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  10. The magnetic field line passing through the centre of a current-carryi...

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

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

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

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

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  15. The magnetic field inside the solenoid is

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

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  17. A magnetic field does not exert a force on

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

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  19. Connecting too many appliances in a circuit causes

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  20. At the time of short circuit, the current in the circuit,

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