Question

Define the drift velocity of electrons in a conductor?

Answer 1

• It is defined as an average velocity attained by the charged particles (electrons) in a material due to an electric field.
• The drift velocity can be calculated by using the following formula: $\mathrm{I}=\mathrm{nAvQ}$

where,

• $\mathrm{v}=$drift velocity of electrons
• $\mathrm{n}=$ number of electrons
• $\mathrm{A}=$ area of cross-section of a conductor
• $\mathrm{Q}=$ charge of an electron
• $\mathrm{I}=$ current flowing through the conductor.