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Class 12 Physics Practice Test: Resistivity of Various Materials
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Class 12 Physics Practice Test: Resistivity of Various Materials
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10 Questions

1. Identify the wrong statement describing the color code for carbon resistors.
2. ‘X’ is a type of commercial resistor made from a mixture of clay, carbon black, and resin binder which are pressed and then molded into cylindrical rods by heating. Identify X.
3. Identify the material whose resistivity is more than 1014 Ωm.
4. If the fourth band of the carbon resistor is absent, it implies there is no tolerance.
5. Find the resistance value of the carbon resistor if the colors of the four bands are yellow, violet, brown and gold respectively.
6. Identify the type of materials which have resistivities in the range of 10-8 Ωm to 10-6 Ωm.
7. Find the resistance value of the carbon resistor if the colors of bands are green, violet, and red respectively.
8. Identify the material whose resistivity lie between 10-6 Ωm and 104 Ωm.
9. Which of the following is a widely used variety of commercial resistor?
10. Find the resistance value of the carbon resistor if the colors of the four bands are red, red, red and silver respectively.

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