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For toroid of mean radius 20 cm, turns =...

For toroid of mean radius 20 cm, turns = 240 and a current of 2A. What is the value of magnetic field within toroid ?

A

`4.8xx10^(-4)T`

B

`2.4xx10^(-4)T`

C

`1.2xx10^(-4)T`

D

zero

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The correct Answer is:
A
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