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A sample of copper wire has a resistance of 50 Ω at 100C. The maximum operating temperature of the wire if its resistance is to increase by at most 10 percent will be:
(Given, the Temperature coefficient at 100C is a = 0.004090C-1).
  • a)
    19.55 0C
  • b)
    22.22 0C
  • c)
    34.45 0C
  • d)
    42.67 0C
Correct answer is option 'C'. Can you explain this answer?
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A sample of copper wire has a resistance of 50 Ω at 100C. The ma...
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A sample of copper wire has a resistance of 50 Ω at 100C. The ma...
Ohms. This means that if a current of 1 ampere is passed through the wire, there will be a voltage drop of 50 volts across it.

The resistance of a wire depends on its length, cross-sectional area, and the material it is made of. Copper is a good conductor of electricity and is commonly used in electrical wiring. The longer the wire, the higher the resistance, and the thicker the wire, the lower the resistance.

Resistance can also be affected by temperature. As the temperature of a wire increases, its resistance also increases. This is known as the temperature coefficient of resistance.

In order to calculate the resistance of a wire, the formula R = ρL/A is used, where R is the resistance, ρ is the resistivity of the material, L is the length of the wire, and A is the cross-sectional area.

Overall, understanding resistance and how it affects electrical circuits is essential in designing and troubleshooting electrical systems.
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A sample of copper wire has a resistance of 50 Ω at 100C. The maximum operating temperature of the wire if its resistance is to increase by at most 10 percent will be:(Given, the Temperaturecoefficient at 100C is a = 0.004090C-1).a)19.55 0Cb)22.22 0Cc)34.45 0Cd)42.67 0CCorrect answer is option 'C'. Can you explain this answer?
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A sample of copper wire has a resistance of 50 Ω at 100C. The maximum operating temperature of the wire if its resistance is to increase by at most 10 percent will be:(Given, the Temperaturecoefficient at 100C is a = 0.004090C-1).a)19.55 0Cb)22.22 0Cc)34.45 0Cd)42.67 0CCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A sample of copper wire has a resistance of 50 Ω at 100C. The maximum operating temperature of the wire if its resistance is to increase by at most 10 percent will be:(Given, the Temperaturecoefficient at 100C is a = 0.004090C-1).a)19.55 0Cb)22.22 0Cc)34.45 0Cd)42.67 0CCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A sample of copper wire has a resistance of 50 Ω at 100C. The maximum operating temperature of the wire if its resistance is to increase by at most 10 percent will be:(Given, the Temperaturecoefficient at 100C is a = 0.004090C-1).a)19.55 0Cb)22.22 0Cc)34.45 0Cd)42.67 0CCorrect answer is option 'C'. Can you explain this answer?.
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