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The strength of the magnetic field produ...

The strength of the magnetic field produced in a current-carrying straight conductor is

A

directly proportional to the distance from the wire

B

directly proportional to the magnitude of the current in wire

C

inversely proportional to the magnitude of the current in wire

D

independent of the magnitude of the current in wire

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

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

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

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

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

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  6. A magnetic field does not exert a force on

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

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  8. Connecting too many appliances in a circuit causes

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

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  10. Commercial electric motors do not use

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  11. Choose the incorrect statement.

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

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  13. The right-hand thump rule was stated by

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  14. Who was the first to observe the magnetic effect of electric current ...

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  15. Who gave the principle of electromagnetic induction ?

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

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  17. Electromagnetic induction occurs when

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  18. What is electromagnetic induction ?

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

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  20. Which device produces an electric current ?

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