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At the centre of which of the followin...

At the centre of which of the following four circular rings is the magnetic field maximum while passing equal current through each of them ?

A

(a)

B

(b)

C

(c)

D

(d)

Text Solution

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The correct Answer is:
A
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KUMAR PRAKASHAN-MAGNETIC EFFECTS OF ELECTRIC CURRENT -CHOOSE THE CORRECT OPTION FROM THOSE GIVEN BELOW EACH QUESTIONS:
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  9. On what factor does the direction of the magnetic field produced b...

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  11. As we move away from a current -carrying straight wire , the magneti...

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