An atom consists of a Proton and electron separated by a distance of 0...
It is not possible to calculate the magnetic flux density at the region of nucleus without knowing the charge and magnetic moment of the proton and the electron, as well as the radius of the electron's orbit.
This question is part of UPSC exam. View all NEET courses
An atom consists of a Proton and electron separated by a distance of 0...
Magnetic Flux Density Calculation
To find the magnetic flux density (B) at the region of the nucleus due to an electron moving in a circular orbit, we can use the following steps:
1. Parameters Given
- **Distance (r)**: 0.5 Å = \(0.5 \times 10^{-10} \, m\)
- **Velocity (v)**: \(10^{13} \, cm/s = 10^{11} \, m/s\)
2. Current Equivalent of Electron Motion
The electron moving in a circular path can be treated as a current loop. The equivalent current (I) due to the electron can be calculated as:
- **Charge of electron (e)**: \(1.6 \times 10^{-19} \, C\)
- **Frequency (f)**: The frequency of revolution can be calculated using the velocity and radius:
\[
f = \frac{v}{2\pi r}
\]
Substituting the values:
\[
f = \frac{10^{11}}{2\pi \times 0.5 \times 10^{-10}} \approx 3.18 \times 10^{20} \, Hz
\]
- **Current (I)**:
\[
I = e \times f \approx 1.6 \times 10^{-19} \times 3.18 \times 10^{20} \approx 5.09 \, A
\]
3. Magnetic Flux Density (B)
The magnetic flux density at the center of the circular loop can be calculated using the formula:
\[
B = \frac{\mu_0 I}{2r}
\]
Where:
- **\(\mu_0\)** (permeability of free space) = \(4\pi \times 10^{-7} \, T \cdot m/A\)
Substituting the values:
\[
B = \frac{4\pi \times 10^{-7} \times 5.09}{2 \times 0.5 \times 10^{-10}}
\]
Calculating this gives:
\[
B \approx 1.3 \times 10^{3} \, T
\]
Conclusion
The magnetic flux density at the region of the nucleus due to the electron's motion is approximately \(1.3 \, kT\). This strong magnetic field is a result of the high velocity and the small radius of the electron’s orbit.
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.