Though silver is a good conductor, why it is not an ideal choice for transmission of
electricity?
i) It is expensive
ii) It oxidizes and tarnishes when it comes in contact with air.
iii) Its resistivity decreases with increase in temperature
a) Only (i)
b) Only (ii)
c) Both (i) and (ii)
d) Only (iii)
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Answer:
A Only one it is expensive