Q. The work done in moving an alpha particle between two points having potential difference 25 V is
A) $8 \times 10^{- 18}J$
B) $8 \times 10^{- 19}J$
C) $8 \times 10^{- 20}J$
D) $8 \times 10^{- 16}J$
Explanation
(a) Required work done,
$W = QV$
$= (2e) \times 25$
$= 50e = 50 \times 1.6 \times 10^{- 19}$
$= 8 \times 10^{- 18}J$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.