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Electric Circuits Review - Section 11.2

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Questions and Answers

What is defined as the rate of flow of electric charge in a circuit?

Voltage

Current (correct)

Resistance

Power

Which of the following best describes electrical resistance?

The voltage difference between two points

A property that hinders electric current (correct)

The rate of flow of electric current

The speed at which electrons move

How is potential difference in a circuit measured?

In ohms with a multimeter

In volts with a voltmeter (correct)

In watts with a power meter

In amperes with an ammeter

What is the typical speed of the electric field in an operating circuit?

<p>At almost the speed of light (B)</p> Signup and view all the answers

In a circuit connected to a cell, where do the electrons move?

<p>From negative terminal to positive terminal (B)</p> Signup and view all the answers

Study Notes

Section 11.2 Review

An electric circuit is a closed path; electrons flow along it, powered by energy sources.
In a circuit connected to a cell, electrons move slowly from the negative terminal to the positive terminal in the external circuit.
Electric fields in operating circuits transmit energy nearly at the speed of light.
Electric current is the rate of electric charge flow in a circuit, measured in amperes (A) using an ammeter.
Electrical resistance is a substance property that slows down electric current, converting electrical energy into other types.
Potential difference, or voltage, is the difference in electrical potential energy per unit charge between two points in a circuit; measured in volts (V) using a voltmeter.

Review Questions

Question 1: Compare and contrast a water tap and an electrical switch.
Question 2: Refer to Figure 11.15; explain why a D cell lasts longer than other cells.

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Description

This quiz reviews key concepts in electric circuits as outlined in Section 11.2. It covers the flow of electrons, electric current, resistance, and potential difference. Test your understanding with comparison questions and explanations related to circuits.