Question

1) A plastic rod is charged to -12 nC by rubbing. a) Have electrons been added or protons removed? Explain! b) How many electrons have been added or protons removed?

Answer 1

Understanding the concept of charge transfer.

Implies Understanding the concept of transfer of charges: - neutron: it contains no charge proton: H contains a positive charge + e = 1.6 times 106-9 c Electron: it contains a negative charge Equating, -e = -1.6 times 10^-19 c And among those three, neutrons proton lives inside the nucleus held to gather by strong forces & the electrons are revolving around the nucleus which are free to move any where. So, whenever there is some electro static interaction between two atoms. then only electrons are transferred or shared between them. from that two things should always be remembered for charge transfers Usually for any neutral atom, the no .of protons & electrons are equal. so, e = whenever a certain number of electrons are taken away from the atom then it can be understood that the number protons would become than that of electrons & hence that certain atom/ element/ particle would certain a positive charge. And whenever

Answer 2

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