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In hydrogen atom, an electron is revolvi...

In hydrogen atom, an electron is revolving in the orbit of radius `0.53 Å` with `6.6xx10^(15) rotations//second`. Magnetic field produced at the centre of the orbit is

A

`.125Wb//m^(2)`

B

`1.25Wb//m^(2)`

C

`12.5Wb//m^(2)`

D

`125Wb//m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Magnetic field produced of the centre is
`B=(mu_(0))/(4pi)*(2pi(qv))/(r)`
`(10^(-7)xx2xx3.14xx(1.6xx10^(-19)xx6.6xx10^(15))/(0.53xx10^(-10))`
`=12.5Wb//m^(2)`
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