(c) $q_{3} = \frac{C_{3}}{C_{2} + C_{3}}.Q$ $q_{3} = \frac{3}{3 + 2} \times 80 = \frac{3}{5} \times 80$ $= 48\ \mu C$
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.