Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Connect with professionals ready to provide precise answers to your questions on our comprehensive Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.
Sagot :
Electrical resistivity is the measure of the material that can resist the electrical charge. The resistance of the copper wire at 80°C will be 146.43 Ω. Thus, option E is correct.
What is resistance?
Electrical resistance is defined as the opposing force that counteracts the electrical charge flow in the material. It is expressed in the terms of the ohms (Ω).
Resistance is calculated as,
R₈₀ = R₀(1 + αΔT)
Given,
Temperature coefficient of resistance (α) = 0.0068 °C⁻¹
ΔT = 60°C
Resistance of a wire (R₀) at 20° C = 104 Ω
Resistance of a wire (R₈₀) at 80°C =?
Substituting values above:
R₈₀ = (104 )[1 + (0.0068)(60)]
R₈₀ = 146.43 Ω
Therefore, option E. 146.43 Ω is the resistance of the copper wire at 80°C.
Learn more about resistance here:
https://brainly.com/question/13532749
#SPJ4
Your question is incomplete, but most probably your full question was, The temperature coefficient of resistivity for copper is 0.0068 °C⁻¹. If a copper wire has a resistance of 104 Ω at 20°C, what is its resistance at 80°C?
- 112.64 Ω
- 98.56 Ω
- 84.48 Ω
- 70.40 Ω
- 146.43 Ω
We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.
