Correct Answer - Option 3 : zero charge
Basic Properties of charge:
- Charges are additive in nature
- The charge is conserved Quantity
- Quantization of Electric Charge
Additivity of Electric Charge
- Consider a system of charges consists of ‘n’ point charges with magnitude q1, q2,……qn. In such a system, the total charge of the system can be obtained by algebraically adding the three charges.
- These charges have the only magnitude but no direction, it is scalar quantities, and are treated like real numbers during operation.
- We note that the charge can either be positive or negative and the operation takes the sign of the charge into consideration.
- For a system containing ‘n’ number of a point charge, the total charge (Q) of the system can be written as,
Q = q1 ± q2 ± ………± qn
Conservation of Electric Charge
- According to the principle of conservation of charges, the charges are neither created nor destroyed, they are only transferred from one body to the other.
Quantization of Electric Charge
- According to the principle of quantization of electric charge, all the free charges are integral multiples of a basic predefined unit which we denote by e.
- Thus, the charge possessed by a system can be given as Q = ne
Where n is an integer value
And e is the charge on electron or proton given by, ± 1.6 × 10-19C
Given, Number of Proton = Number of Electron
Positive charge = Negative charge
∴ Total charge = 0