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A solenoid of 1.5 metre length and 4.0 c...

A solenoid of 1.5 metre length and 4.0 cm diameter posses 10 turn per cm. A current of 5 ampere is flowing through it. The magnetic induction at axis inside the solenoid is

A

`2pixx10^(-3)` Tesla

B

`2pixx10^(-5)` Tesla

C

`4pixx10^(-2)` Gauss

D

`2pixx10^(-5)` Gauss

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The correct Answer is:
A
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