Current Electricity — Physics STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
MCQ
Identify the material whose resistivity is more than $10^{14} \Omega m$.
✓
Bakelite
B
Copper
C
Aluminum
D
Silicon
✓
Answer
Correct option: A.
Bakelite
a. Bakelite Explanation:
Insulators are materials which do not conduct electric current, and thereby, offer high resistance to the flow of charges. Insulators like bakelite and hard rubber have very high resistivities in the range of $10^{14}$ to $10^{16} \Omega m$.
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