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Which of the following materials is the ...

Which of the following materials is the best conductor of electricity ?

A

Platinum

B

Gold

C

Silicon

D

Copper

Text Solution

Verified by Experts

The correct Answer is:
D
Among the given materials copper is the best conductor of electricity.
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MTG GUIDE-CURRENT ELECTRICITY -NEET CAFE ( TOPICWISE PRACTICE QUESTIONS )
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  2. The current density varies radical distance r as J=ar^(2), in a cylind...

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  3. Which of the following materials is the best conductor of electricity ...

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  4. For which of the following depndences of drift velocity, v(d) on elect...

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  5. Current is flowing with a current density J=480Acm^(-2) in a copper wi...

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  6. The V-I graph for a conductor at temperature T(1)andT(2) are as shown ...

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  7. The temperature coefficient of resistance for a wire is 0.00125^(@)C^(...

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  8. The resistance of the wire in the platinum resistance thermometer at i...

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  9. Find the true statement.

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  10. The graph between resistivity and temperature, for a limited range of ...

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  11. On increasing the temperature of a conductor, its resistance increases...

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  12. The voltage V and current I graphs for a conductor at two different te...

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  13. Fractional increase in resistivity per unit increase in temperature is...

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  14. The resistance of a wire at 20^(@)C is 20Omega and at 500^(@)C is 60Om...

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  15. Nichrome or Manganin is widely used in wire bound standard resistors b...

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  16. The tolerance level of a resistor with the colour code red, blue, oran...

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  17. What is the colour code for a resistor of resistance 3.5 k Omega with ...

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  18. A resistor is marked with the rings coloured brown, balck, green, and ...

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  19. Pick out the wrong feature about carbon resistors.

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  20. Two wires of same metal have the same length but their cross- sections...

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