7. An electric heater is made of Nichrome wire. The wire has a resistance of 15.2 Ω at a temperature of 20°C. Determine the resistance of the Nichrome wire when the temperature of the wire is increased to 260°C. *Round off to 4 decimal digits

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A: Electrical circuit problem.

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A: The resistance can be found using R=LσA Where, σ is electrical conductivity of the material,L is…

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Q: 14. Calculate the ratio of voltage across to the current flowing through for the battery. bat=[8V I…

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Q: Current and Resistance Problem 9:   An extension cord that has a length of 9.65m is made from wire…

A: Please see the attached image for the solution.  If there are queries or if the image is not…

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Q: 7. Lightning discharges and lightning occur when charges are separated at different heights in the…

A: