Question 357: Atoms & Nuclei

Question

In Bohr's atomic model, the electron is assumed to revolve in a circular orbit of radius 0.5 $$\mathop A\limits^o $$. If the speed of electron is 2.2 $$	imes$$ 16
6
m/s, then the current associated with the electron will be _____________ $$	imes$$ 10
$$-$$2
mA. [Take $$\pi$$ as $${{22} \over 7}$$]

Accepted Answer

$$I = {e \over T} = {{e\omega } \over {2\pi }} = {{eV} \over {2\pi r}}$$
$$I = {{1.6 	imes {{10}^{ - 19}} 	imes 2.2 	imes {{10}^6} 	imes 7} \over {2 	imes 22 	imes 0.5 	imes {{10}^{ - 10}}}}$$
= 1.12 mA
= 112 $$	imes$$ 10
$$-$$2
mA

Atoms & Nuclei

In Bohr's atomic model, the electron is assumed to revolve in a circular orbit of radius 0.5 $\mathop A\limits^o . If the speed of electron is 2.2 \times 16 6 m/s, then the current associated with the electron will be _____________ \times 10 -2 mA. [Take \pi as {{22} \over 7}$]

Integer / Numeric Answer Type