Question

1. Current in a conductor is due to
(a) motion of free electrons in it
(b) motion of positive ions
(c) free electrons and holes
(d) protons

please answer it .
and explain your tagged answer!
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Answer 1

Answer:

(c) free electrons and holes

Answer 2

Answer:

a. due to motion of free electrons in it.

Step-by-step explanation:

metallic conductor has a large number of free electrons in it. When a potential difference is applied across the ends of a metallic wire, the free electrons begin to drift from the low potential to the high potential region. These electrons collide with the positive ions (the atoms which have lost their electrons).