Two particles each having charge of 5μC are placed at a separation of 1m. what would be the work done by external force in pulling them apart slowly by 2m, so that new separation becomes 3m?
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
answer is 3.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
From work energy theorem, ΔK=Wext+Wint=Wext−Wele0=Wext−Uf−UiWext=q1q24πε01r2−1r1=5×10−62×9×10913−1=−0.15J