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Which among the following are properties of charge? (a) Charge is additive. (b) Charge is quantized. (c)  Charge is conserved. 

Which among the following are properties of charge? (a) Charge is additive. (b) Charge is quantized. (c)  Charge is conserved.  Correct Answer (a), (b), (c)

Concept:

Properties of Charge

Charge is additive

  • In a system of charge, the total charge is just the sum of all the charges. 
  • If q1, q2, q3 ... qn are various charges, then the total charge is given as q = q1 + q2 + q3 -------- qn. 

Charge is quantized

  • All free charges are integral multiples of a basic unit of charge denoted by e. 
  • Charge on anybody is due to the transfer of electrons, so net charge on any object will be the integral multiple of the charge. 

Charge is conserved

  • The net charge of a system will remain conserved. 
  • Consider two uncharged body A and B. The net charge of the system is zero. 
  • If an electron is transferred from A to B, then the A will be negatively charged by one unit and B will be positively charged by 1 unit of electronic charge. 
  • But net charge on A + B if calculated will be - 1 + 1 = 0. 
  • So net charge will remain zero even if the charge is transferred within a system of charges.

Conclusion:

Charge properties are 

(a) Charge is additive.

(b) Charge is quantized.

(c)  Charge is conserved. 

So, (a), (b), (c) is the correct option. 

Additional Information

  • The SI unit of charge is Coulomb
  • A charge is transferred by rubbing or induction. 
  • Flow of charge per unit time is current. 

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