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A resistance thermometer measures temper...

A resistance thermometer measures temperature with the increase in resistance of a wire of high temperature. If the wire is platinum and has resistance of `10Omega` at `20^@C` and a resistance of `35Omega` in a hot furnace, what is the temperature of the hot furnace? `(alpha_("platinum") = 0.0036^@C^(-1))`

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To solve the problem of finding the temperature of the hot furnace using the resistance of a platinum wire, we can follow these steps: ### Step-by-Step Solution: 1. **Identify Given Values:** - Initial resistance at \(20^\circ C\) (R_initial): \(10 \, \Omega\) - Final resistance in the hot furnace (R_final): \(35 \, \Omega\) - Temperature coefficient of resistance for platinum (\(\alpha\)): \(0.0036 \, ^\circ C^{-1}\) ...
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CENGAGE PHYSICS ENGLISH-ELECTRIC CURRENT AND CIRCUIT-Exercise 5.1
  1. A metal wire of diameter 2mm and of length 300m has a resistance of 1....

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  2. It is desired to make a 20Omega coil of wire, which has a zero thermal...

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  3. A resistance thermometer measures temperature with the increase in res...

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  4. Though the drift velocity of electorn responsible for current in a con...

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  5. a. A steady current flows in a metallic conductor of non - uniform cro...

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  6. A potential difference V is applied to copper wire of diameter d and l...

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  7. A wire has a resistance R. What will be its resistace if (a) it is d...

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  8. The current in a wire varies with time according to the equation I = ...

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  9. The following table gives the length of three copper rods, their diame...

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  10. The current voltage graphs for a given metalic wire two different temp...

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  11. The voltage-current variations of two metallic wire X and Y at constan...

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  12. A beam contains 2.0xx10^8 doubly charged positive ions per cubic centi...

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  13. The current density across a cylindrical conductor of radius R varies ...

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  14. Shown a conductor of length l having a circular cross section. The rad...

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  15. If a copper wire is stretched to make it 0.1% longer what is the perce...

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  16. A copper wire having cross- sectional area of 0.5 mm^2 and a length of...

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  17. A copper wire having cross- sectional area of 0.5 mm^2 and a length of...

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  18. A conductive wire has resistance of 10 ohm at 0^@C and alpha is 1/273^...

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  19. What is the drift speed of the conduction electrons in a copper wire w...

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  20. (a) At what temperature would the resistance of a copper conductor be ...

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