Question

In the Bohr's model of hydrogen atom, the electron moves around the nucleus in a circular orbit of-radius $5\times {10}^{-11}$ meters. If its time period is $1.5\times {10}^{-16}$ sec, then current associated with the electron motion is

• A. zero
• B. $1.6\times {10}^{-19}A$
• C. 0.17A
• D. $1.07\times {10}^{-3}A$

Answer 1

The correct option is D $1.07\times {10}^{-3}A$

Current is defined as , the amount of charge passing through a given cross section per unit time.
$[I=Q/t]$
according to the given data,
$[I=1.6\times {10}^{-19}/1.5\times {10}^{-16}]$ ampere
$[I=1.07\times {10}^{-3}]$ ampere