engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Electrician and Wireman Electrical Networks Basic Electricity
Which of the following statements about electrons is incorrect?
1
It is a component of cathode rays.
2
It is a negative charged particle.
3
It is a basic component of all atoms.
4
The mass of an electron is equal to the mass of a neutron.