Addition of 0.3 to 4.5% silicon to iron _____ the electrical resistivity of iron.

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Addition of 0.3 to 4.5% silicon to iron increases the electrical resistivity of iron.

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Related questions

Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? (A) Armature of small motors/generators (B) Generators and small motors (C) Induction motors (D) High frequency transformers

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Last Answer : (D) High frequency transformers

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The resistivity of a metal is a function of temperature because

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By increasing impurity content in the metal alloy the residual resistivity always

Description : By increasing impurity content in the metal alloy the residual resistivity always

Last Answer : By increasing impurity content in the metal alloy the residual resistivity always increases.

High resistivity materials are used in?

Description : High resistivity materials are used in?

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When a sample of germanium and silicon having same impurity density are kept at room temperature then Resistivity of silicon will be higher than that of germanium, Why?

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Last Answer : Ans-The answer is simple. Consider the PN diode for Ge 0.3eV is the breakdown voltage and in the case of Si its 0.7eV since the impurities are added in the same amount the bond due to the other atoms of the Si makes it resistive compared to the Ge.. thats all!

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Addition of __________ to steel does not help in improving its machinability. (A) Sulphur (B) Silicon (C) Lead (D) Phosphorous

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Addition of __________ to steel does not impart hardness. (A) Nickel (B) Copper (C) Chromium (D) Silicon

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Addition of __________ to steel does not help in improving its machinability. (A) Sulphur (B) Silicon (C) Lead (D) Phosphorous

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Silicon percentage in iron castings to have maximum hardness should be about (A) 0.3 (B) 0.5 (C) 0.8 (D) 2.5

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What length of an alloy wire of resistivity 5.0x10^-7 Ωm and diameter 0.50mm is required to make a standard 6.0Ω resistor?

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Last Answer : Interesting homework question. I’m not knowledgeable about physics, but putting myself in the shoes of someone who is.. Why don’t you post the answer that you got, and show your work, and ask us where you went wrong on the problem.