Question

The materials which have resistivity in the order of 10¹⁴ to 10¹⁶ Ω-m are

• A. insulators
• B. conductors
• C. semiconductors
• D. None of these

Answer 1

The Correct Option is A

Correct answer: insulators 

Explanation:
Materials with resistivity in the range of \( 10^{14} \ \Omega\text{-m} \) to \( 10^{16} \ \Omega\text{-m} \) are called insulators. 

Insulators offer very high resistance to the flow of electric current, making them ideal for preventing current flow. Common examples include rubber, glass, and plastic. 

Comparison:
- Conductors: \( \sim 10^{-8} \ \Omega\text{-m} \)
- Semiconductors: \( \sim 10^{-6} \) to \( 10^{2} \ \Omega\text{-m} \)
- Insulators: \( \sim 10^{14} \) to \( 10^{16} \ \Omega\text{-m} \) 

Therefore, the correct answer is: insulators.