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Which of the following shows correct ran...

Which of the following shows correct range of conductivity ?
(i)Conductors : `10^4` to `10^7 ohm^(-1) m^(-1)`
(ii)insulators : `10^(-6)` to `10^4 ohm^(-1) m^(-1)`
(iii)Semiconductors : `10^(-10)` to `10^(-6) ohm^(-1) m^(-1)`

A

(i) and (ii)

B

(i) only

C

(ii) and (iii)

D

(i), (ii) and (iii)

Text Solution

Verified by Experts

The correct Answer is:
B
Conductors : `10^4` to `10^7 ohm^(-1) m^(-1)`
Insulators: `10^(-20)` to `10^(-10) ohm^(-1) m^(-1)`
Semiconductors: `10^(-6)` to `10^4 ohm^(-1) m^(-1)`
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