Electricity Concepts: Current, Voltage, and Resistance

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What is the force pushing electrons through a wire likened to in the text?

Electrons in a wire

Friction against the walls

Water flowing through a hose (correct)

Resistance slowing down the flow

Which of the following materials is NOT a good electrical conductor according to the text?

Silver

Gold

Air (correct)

Copper

Which scientific principle describes the flow of electrons from atom to atom in a conductor?

Resistance principle

Conductivity principle (correct)

Voltage principle

Ohm's law principle

What type of current flows in only one direction from negative toward positive pole of the source?

Direct Current (DC) Signup and view all the answers

In the context of electricity, which types of elements are good conductors?

Elements with fewer than four electrons in their outer shell Signup and view all the answers

What happens in a circuit with an open circuit?

No current flows Signup and view all the answers

In a closed circuit, what happens when the switch is closed?

Current flows Signup and view all the answers

What is the direction of electron flow in a conductor according to the Electron Theory?

From negative to positive Signup and view all the answers

Which term is used in the text to describe an impediment that slows the flow of electrons?

Resistance Signup and view all the answers

Why does a short circuit have too much current flowing through it?

Low resistance in the short circuit Signup and view all the answers

Which of the following electrical quantities is measured in Ohms?

Resistance Signup and view all the answers

Which of the following is NOT considered a good insulator according to the text?

Aluminum Signup and view all the answers

What does the term 'insulator' refer to in the context of electricity?

A material that inhibits the flow of electrons Signup and view all the answers

What term is used to describe materials that do not let electricity flow through them?

Insulators Signup and view all the answers

What is the role of a fuse in a circuit with a short circuit?

To protect the circuit by burning up if a maximum current is exceeded Signup and view all the answers

Electricity Concepts: Current, Voltage, and Resistance

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Questions and Answers

What is the force pushing electrons through a wire likened to in the text?

Which of the following materials is NOT a good electrical conductor according to the text?

Which scientific principle describes the flow of electrons from atom to atom in a conductor?

What type of current flows in only one direction from negative toward positive pole of the source?

In the context of electricity, which types of elements are good conductors?

What happens in a circuit with an open circuit?

In a closed circuit, what happens when the switch is closed?

What is the direction of electron flow in a conductor according to the Electron Theory?

Which term is used in the text to describe an impediment that slows the flow of electrons?

Why does a short circuit have too much current flowing through it?

Which of the following electrical quantities is measured in Ohms?

Which of the following is NOT considered a good insulator according to the text?

What does the term 'insulator' refer to in the context of electricity?

What term is used to describe materials that do not let electricity flow through them?

What is the role of a fuse in a circuit with a short circuit?

Which electrical quantity is directly related to the rate of energy consumption in a circuit?

How does less resistance in a short circuit affect current flow?

What happens to power wires during a short circuit?

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