The Primary Source of Electrons in an Ordinary Electrical Circuit

question 47

Multiple Choice

The primary source of electrons in an ordinary electrical circuit is

• A)a dry cell,wet cell or battery.
• B)the back emf of motors.
• C)the power station generator.
• D)the electrical circuit itself.
• E)none of these

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Definitions:

Liquid Portion

Refers to the liquid component of a mixture or substance, often used in a biological context to describe the fluid part of blood (plasma).

Plasma

The liquid component of blood, without cells, consisting mainly of water, proteins, salts, lipids, and glucose, which serves as a medium for transporting nutrients, hormones, and waste products.

Blood Volume

The total amount of blood circulating within an individual's vascular system.

Proerythroblasts

Immature red blood cell precursors found in the bone marrow, which eventually mature into erythrocytes.