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Electrical Engineering Questions

Explore questions in the Electrical Engineering category that you can ask Spark.E!

Should voltmeters be connected in series or parallel?

Should ammeters be connected in series or parallel?

Physics Chapter 8 - Charge and current - Electric charge What are the two types of charge ?Opposite charges ____________ ? Like charges ______________ ?

Physics Chapter 8 - Charge and current - Measuring Electric charge What is electric charge measured in ?What is the coulomb defined as ?What is one coulomb equivalent to ?What is a charge carrier ?

Physics Chapter 8 - Charge and current - Cross sectional areaWhat must change if the cross sectional area of the wire changes ?What will happen to the mean drift velocity if the cross sectional area of the wire decreases.

Physics Chapter 8 - Charge and current - Electric current in electrolytesWhat are liquids called that can carry an electric current ?What is the electric current in electrolytes ?What are electrolytes made of ? What is an example of an ionic solution ?

Physics Chapter 8 - Charge and current - Conventional current Which direction is conventional current ?Which way is electron flow ?

Physics Chapter 8 - Charge and current - Measuring electric currentWhat is used to measure electric current at any point in the circuit ?How is the ammeter placed in the circuit ?What should a good ammeter have ?

Physics Chapter 8 - Charge and current - Moving charge carriersWhen a switch is closed in a circuit how do the charge carries start moving ?

Physics Chapter 8 - Charge and current - Measuring Electric charge What are relative charges measured against ?What is the constant e and what is its value ?What is e the same as ? What is the charge on an electron ?

Physics Chapter 8 - Charge and current - Classification of materials What is number density ?What does it mean if the number density is higher ?What are the 3 groups we classify metals into ?What is the number density of conductors ?What is the number density of insulators ?what is the number density of semi- conductors ?What do semiconductors need to do to carry the same current as metals ?

When electricity passes around a circuit energy it transferred from the

Current is passed through of various components in a circuit and generates some

As the charge passes through each component ir loses some energy ( transferring that energy to the component )

In the uk most electrical appliances are connected to the mains using a three core cable consisting of

In a UK domestic electricity supply has a potential difference of

Mains electricity is an AC so does not have positive and negative sides to the power source for equivalent to the P/N are called the

Because of the large potential difference between the live wire and the earth wire if the two touch

In a UK domestic electricity supply has a frequent of

The amount of charge passing through a competent in a given time is given by the current

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