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Standard VII
Physics
Conductor and Insulators
Question
Which of the following would normally be the best conductor?
Steel
Silver
Glass
Copper
A
Glass
B
Steel
C
Copper
D
Silver
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Solution
Verified by Toppr
Among copper, glass, silver and steel, glass is non-metal i.e. insulator; so it has least conductivity.
Conductivity order:
Silver
>
Copper
>
Steel
(in
s
i
e
m
e
n
s
/
m
) at
20
o
C
62.1
×
10
6
>
59.8
×
10
6
>
6.21
×
10
6
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