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Electrical Engineering

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

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

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Which winding is better, copper or aluminium?

Which winding is better, copper or aluminium?

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Which expands more, copper or aluminium?

Which expands more, copper or aluminium?

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

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

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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.

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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Explain the suitability of aluminium as an electrical conductor with respect to its mechanical and electrical properties.

Explain the suitability of aluminium as an electrical conductor with respect to its mechanical and electrical properties.

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

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

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Classify hydropower plants on the basis of water head and state the turbine used for them.

Classify hydropower plants on the basis of water head and state the turbine used for them.

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State the various lighting calculations methods and describe any one of them.

State the various lighting calculations methods and describe any one of them.

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State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them.

State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them.

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

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

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Which US state produces the most electricity?

Which US state produces the most electricity?

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Which conductors do not obey Ohms law?

Which conductors do not obey Ohms law?

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Which factor the copper loss of a transformer depends?

Which factor the copper loss of a transformer depends?

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Which loss is called as copper loss?

Which loss is called as copper loss?

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Which loss is called a copper loss?

Which loss is called a copper loss?

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Is the human body a good conductor of electricity?

Is the human body a good conductor of electricity?

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State any four properties of conductor material used for overhead conductor.

State any four properties of conductor material used for overhead conductor.

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What are the properties of steady state?

What are the properties of steady state?

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Explain the concept of ground loops and how to avoid them.

Explain the concept of ground loops and how to avoid them.

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What are the basic concepts of household wiring and explain them?

What are the basic concepts of household wiring and explain them?

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What are hysteresis and eddy current losses what can be done to minimize them?

What are hysteresis and eddy current losses what can be done to minimize them?

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Explain the conditions for setting up negative phase sequence currents in an alternator. Draw the protective scheme to detect them and operate the CB.

Explain the conditions for setting up negative phase sequence currents in an alternator. Draw the protective scheme to detect them and operate the CB.

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Classify various electric heating methods and explain them briefly.

Classify various electric heating methods and explain them briefly.

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What is a good steady state?

What is a good steady state?

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Make use of load factor and maximum demand tariff to minimize electrical consumption of electrical installation.

Make use of load factor and maximum demand tariff to minimize electrical consumption of electrical installation.

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What is the temperature dependence of resistance for conductors insulators and semiconductors?

What is the temperature dependence of resistance for conductors insulators and semiconductors?

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How does temperature impact the conductivity of electrical conductors and insulators?

How does temperature impact the conductivity of electrical conductors and insulators?

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How and why is resistance affected by temperature of conductors?

How and why is resistance affected by temperature of conductors?
Answer : The resistance of conductors changes with temperature, and this happens because the movement of electrons in the material is affected by temperature. ### How Temperature Affects Resistance: 1. ** ... circuits, especially in devices that operate in varying temperatures, like motors or power lines....

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What is the effect of temperature on the resistance of conductors and semiconductors?

What is the effect of temperature on the resistance of conductors and semiconductors?

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How does increase in temperature affect the resistance of (i) conductors and (ii) insulators ?

How does increase in temperature affect the resistance of (i) conductors and (ii) insulators ?

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What is the difference between conductors and insulators?

What is the difference between conductors and insulators?

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What is the difference between electrical conductors and insulators?

What is the difference between electrical conductors and insulators?

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Bundled Conductors and Composite Conductors Difference?

Bundled Conductors and Composite Conductors Difference?

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What is the relationship between temperature and resistance in conductors?

What is the relationship between temperature and resistance in conductors?

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When temperature increases the electrical resistance for conductors and semiconductors?

When temperature increases the electrical resistance for conductors and semiconductors?

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What is the electrochemical equivalent of aluminium?

What is the electrochemical equivalent of aluminium?

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What is a bimetallic strip of copper and aluminum?

What is a bimetallic strip of copper and aluminum?

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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.

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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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

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 copper loss and why is it variable?

What is copper loss and why is it variable?

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Which type of amplifier is good?

Which type of amplifier is good?

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Which branch is good ECE or electrical?

Which branch is good ECE or electrical?

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Which breaker is good for 1.5 ton AC?

Which breaker is good for 1.5 ton AC?

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Which is good ELCB or RCCB?

Which is good ELCB or RCCB?

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Which branch is good ECE or EEE?

Which branch is good ECE or EEE?

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List different starting methods of three phase synchronous motor. Explain any one of them.

List different starting methods of three phase synchronous motor. Explain any one of them.

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What state produces the most electricity in the US?

What state produces the most electricity in the US?

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What type of material is used to make the armature core?

What type of material is used to make the armature core?

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Who make fiber optics?

Who make fiber optics?

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What materials are used to make LEDs?

What materials are used to make LEDs?

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