A Series Circuit Consists of a Battery with Internal Resistance

question 18

Multiple Choice

A series circuit consists of a battery with internal resistance r and an external resistor R.If these two resistances are equal (r = R) then the energy dissipated per unit time by the internal resistance r is:

• A)the same as by R
• B)half that by R
• C)twice that by R
• D)one third that by R
• E)unknown unless the emf is given

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Definitions:

Visceral Pericardium

The innermost layer of the pericardium that lies directly on top of the heart; also known as the epicardium.

Fibrous Pericardium

The tough, outer layer of the pericardium that encloses the heart and roots of the great blood vessels, providing protection and anchorage.

Parietal Pericardium

The layer on top of the visceral pericardium.

Blood Pressure

The pressure of circulating blood against the walls of blood vessels, typically measured in the arteries.