As shown in figure a dust particle with mass m = 5.0 × 10–9 kg and charge q0 = 2.0 nC starts
Channel: Doubtnut
Date: 23/08/2020

As shown in figure a dust particle with mass m = 5.0 × 10–9 kg and charge q0 = 2.0 nC starts from rest at  point a and moves in a straight line to point b . What is its speed v at point b?