3. The resistance of a 25 ohms resistorincreases by 10 percent when its operating temperature increases from 15 C to 50•C.Calculate the mean temperatue rise of the resistor from an ambient temperature of 20C when its resistanceis 30 ohms and the temperature coefficient remains constant.

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Q: b) A student sets up an electric circuit like the one shown in Figure Q1(b). i) Describe how a…

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Q: 2. An incandescent light bulb uses a cold filament of tungsten that is 580 mm. long with a diameter…

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Q: Problem 13. Some copper wire has a resistance of 2002 at 20°C. A current is passed through the wire…

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A: Given that  RH=5e-4   m3Cρ=10e-3 ohm-m

Q: The resistivity of a copper rod 50 ft. long and 0.25 inch in diameter is 1.76 microhm-cm at 20°

A: In this question we will find resistance of copper rod...

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A:

Q: A silver wire has a resistance of 2.5 ohms. What will be the resistance of manganin wire having a…

A: Given, R1=2.5 Ωd2=d12l2=l14ρ2=25ρ1 For silver wire, R1=ρ1l1A1 For manganin wire, R2=ρ2l2A2

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A: Bartleby has policy to solve only first question and incase if it has subparts then solve only first…

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Q: An incandescent light bulb uses a cold filament of tungsten that is 580 mm. long with a diameter of…

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A: The solution can be achieved as follows.

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Q: At room temperature, what will be the value of thermal voltage? Show detailed calculations.

A: Write the expression thermal voltage as follows:

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Q: Nichrome wire is used in some radiative heaters. What length of Nichrome wire, having a…

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Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.