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What is the permittivity of copper?
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Which factor the copper loss of a transformer depends?

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What is the nickname of copper metal?
Answer : Copper is often nicknamed "red metal" because of its reddish-brown color. Another common nickname is "electrical metal" due to its excellent conductivity, which makes it widely used in electrical wiring....

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State the properties of copper and aluminium which make them good conductors of electricity.

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Compare copper and aluminium on the basis of: (i) Tensile strength (ii) Conductivity (iii) Specific gravity (iv) Application.

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Explain the suitability of copper as an electrical conductor with reference to its mechanical and electrical properties.

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Select insulating materials for following parts: (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

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A 500kVA distribution transformer having copper and iron losses of 5kW and 3kW respectively on full load. The transformer is loaded as shown below: Loading (kW) Power Factor (Lag) No. of hours 400 0.8 06 300 0.75 12 100 0.8 03 No load - 03 Calculate the all-day efficiency.

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State Magneto-striction. Draw Hysteresis loop for: (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood.

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The power input to a 500V 50Hz 6Pole 3 phase induction motor running at 975 rpm is 40 kW. The stator losses are 1kW and friction and windage losses are 2kW. Calculate: (i) Slip (ii) Rotor copper loss (iii) Shaft power (iv) Efficiency

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What is the relation between electric permittivity of a medium and its dielectric constant?

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What is dielectric constant or relative permittivity in terms of force?

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What is the SI unit of relative permittivity or dielectric constant?

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Is absolute permittivity and permittivity of free space same?
Answer : No, absolute permittivity and the permittivity of free space are not exactly the same, but they are closely related. 1. **Permittivity of Free Space (ε₀)**: - This is a constant that ... ** can vary depending on the material and is the product of ε₀ and the material's relative permittivity....

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What is the relative permittivity and permeability of free space?

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What is the mathematical expression of permittivity?

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What is the SI unit of relative permittivity in physics?

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How to calculate the relative permittivity of a dielectric?

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Which of the following is the other name of relative permittivity?

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