22
Question
Which of the following must be there in materials that make good electrical conductors?
Which of the following must be there in materials that make good electrical conductors?
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Solution
The correct option is B free electrons
Free electrons in a material increases the mobility of flowing electrons into the material. It increases the number of electrons that flow when same potential difference is applied, hence higher current and lower resistance.
Thus the conductivity of material increases if it has free electrons.
Free electrons in a material increases the mobility of flowing electrons into the material. It increases the number of electrons that flow when same potential difference is applied, hence higher current and lower resistance.
Thus the conductivity of material increases if it has free electrons.
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