Find the ratio of equivalents current due to electron motion in first and second of hydrogen atom.

Explanation

To find the ratio of the equivalent current due to electron motion in the first and second orbits of a hydrogen atom, we can follow these steps:

### Step 1: Understand the concept of equivalent current
The equivalent current (I) due to the motion of an electron in an orbit can be expressed in terms of the principal quantum number (n). It is known that the equivalent current is inversely proportional to the cube of the principal quantum number (n). Mathematically, this can be expressed as:

\[ I \propto \frac{1}{n^3} \]

### Step 2: Write the expressions for the first and second orbits
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