MCQ
Which of the following statements are true?
  • A
    During electrolysis, charge flows through electrolytic solution via electrons.
  • The randomly moving electrons in a metal wire will start moving in a particular direction when a potential difference is applied across it.
  • C
    A negatively charged particle has higher electric potential than a positively charged particle.
  • D
    Charge flows only through negative charge carriers like electrons.

Answer

Correct option: B.
The randomly moving electrons in a metal wire will start moving in a particular direction when a potential difference is applied across it.
The electrons in any conductor are under continuous motion but in random way. There's no net crossing of charge carriers through a given cross-section. Without potential difference, the electrons move randomly in all directions.The randomly moving electrons in a metal wire will start moving in a particular direction when a potential difference is applied across it.

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