Electric charge

ELECTRIC CHARGE

                                                                            >The electric charges are of two types positive ( proton) and negative (electron). Electric charge is an intrinsic property of electron and proton like mass which is difficult to explain.

->Unit :- in SI unit system charge is measured in coulomb 

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->In electronics, the charge of proton is considered as positive charge and charge of electron is considered as negative charge , but their magnitude are same.

particle	charge (C)
electron	- 1.6 x 10-19
proton	1.6 x 10-19
neutron	0

->During the intrection the equal charges have repulsive force ike positive -positive and negative - negative but they attract if opposite charges , like electron - proton .

->the magnitude of electric field is calculated by law of coulomb