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# Two charges 5 × 10-88 C and -3 × 10-8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.

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Two charges 5 × 10-88 C and -3 × 10-8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.

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1. Solution:
(i) Let C be the point on the line joining the two charges, where electric potential is zero, then So, electric potential is zero at distance of 10 cm from charge of 5 × 10-8 C on line joining the two charges between them. If point C is not between the two charges, then  So, electric potential is also equal to zero a*a distance of 24 cm from charge of -3 × 10-8 C and at a distance of (24 +16) = 40 cm from charge of 5 × 10-8 C, on the side of charge of -3 × 10-8 C.

Check the complete chapter with solutions.

NCERT Solutions for 12th Class Physics: Chapter 2-Electrostatic Potential and Capacitance

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