Practice portal › Electric Potential and Capacitance › Motion of a Charge in an Electric Field
Asked in GSEB Board March 2022 · Accelerated charges
Given: charge e accelerated through Δ V=2 V.
Idea: the electric force does work W=q Δ V on the charge, and that work becomes its kinetic energy.
W=e×2 V.
By definition, 1 eV is the energy gained by one electronic charge through 1 V, so W=2 eV.
In joules this is 2×1.6×10⁻¹⁹=3.2×10⁻¹⁹ J.
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