Question

The electrical resistivities of four materials A, B, C and D are given below:

A 110 x 10-8 Ωm

B 1.0 x 1010 Ωm

C 10.0 x 10-8 Ωm

D 23 x 103 Ωm

Which material is : (a) good conductor (b) resistor (c) insulator, and (d) semiconductor ? ​

Answer 1

Answer:

a) Good conductor = C (10 x 10-8ohm-m) (b) Resistor = A (110 x 10-8 ohm-m) (c) Insulator= B (1 x 1010 ohm-m) (d) Semiconductor= D (2.3 x 103 ohm-m)

Answer 2

Answer:

C, A, B, D is the right answer