Question

3.
Find the number of electrons, which must be removed from a substance to give it a
positive charge of 6.4 x 10-19 C?​

Answer 1

Answer:

Q = n e

6.4 ×10^-12 = n × 1.6 × 10^-19

n = 6.4 ×10^-12 / 1.6 × 10^-19 = 4 × 10^7

Explanation:

Answer 2

Explanation:

Using concept of quantisation of charge,

Q = n e

6.4 ×10^-12 = n × 1.6 × 10^-19

n = 6.4 ×10^-12 / 1.6 × 10^-19 = 4 × 10^7