Why Proton is positive and Electron is Negative? | ইলেক্ট্রন-প্রোটনের সংসার!! | Science with Ahsan

In primary academic level, we all learn about electron proton neutron and their behavior. but, maybe we never think why proton is positive and electron is negative. In this video, this matter has been discussed in proper way. Hopefully, you will like this video."