Compared to 1800,in 1860 Urban American Families

question 30

Multiple Choice

Compared to 1800,in 1860 urban American families

• A) had an increasing birth rate.
• B) None of these answers is correct.
• C) were less likely to see their children leave home in search of work.
• D) had a declining birth rate.
• E) were less likely to have income earners work outside the home.

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Definitions:

Armature

The rotating part of an electric machine (motor or generator) within which a current is induced by a magnetic field.

Brushless DC

A type of direct current electric motor (DC motor) that uses an electronic controller to switch the current in the motor, eliminating the need for brushes.

Wound Armature

A component in electrical machines consisting of coils wound around an iron core, which rotates in a magnetic field to induce electromotive force.

Brushes

Sliding contacts, generally made of carbon, used to provide connection to rotating parts of machines.