Which Statement Is True

question 4

Multiple Choice

Which statement is true?

• A) Hormones travel via specific pathways to specific cells, while electrical signals travel through the blood to all areas of the body.
• B) Effects of hormones last for brief periods of time, while effects of electrical signals last for long periods of time.
• C) It takes longer for hormones to be released into the bloodstream and be taken to target cells than it does for electrical signals to be transmitted.
• D) Hormones have a direct connection with target cells, while electrical signals do not.

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Definitions:

Capacitive Reactances

The opposition to current flow presented by a capacitor, dependent on the frequency of the applied AC signal and the capacitor's value.

Capacitance

The ability of a system to store an electrical charge when a potential difference exists between its conductors.

Reactive Power

The portion of electricity that oscillates between the source and load, not converted into useful work, often measured in Volt-Amperes-Reactive (VAR).

True Power

The actual power consumed by a device, calculated in watts as the product of voltage, current, and the cosine of the phase angle for AC circuits.