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A toroid has a core (non-ferromagnetic) ...

A toroid has a core (non-ferromagnetic) of inner radius 25 cm and outer radius 26 cm, around which 3500 turns of a wire are wound. If the current in the wire is 11 A, what is the magnetic field (a) outside the toroid, (b) inside the core of the toroid, and (c) in the empty space surrounded by the toroid.

A

`0,3xx10^(-2)T,0`

B

`3xx10^(-2)T,0,0`

C

`0,0,3xx10^(-2)T`

D

`3xx10^(-2)T,0,3xx10^(-2)T`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-III
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  7. A closely wound solenoid of 800 turns and area of cross-section 2.5xx1...

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