If a Stimulus Is Strong Enough to Reach a Threshold

question 52

Multiple Choice

If a stimulus is strong enough to reach a threshold level,

• A) an action potential is shut down.
• B) an action potential occurs.
• C) sodium channels in the myelin open.
• D) the resting potential is restored.

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Definitions:

Starter Circuit

The electrical circuit dedicated to initiating the engine's operation.

Starter Field Coil

An electromagnetic coil within a starter motor that generates a magnetic field to turn the motor and start an engine.

Starting/Charging System

A vehicle's system responsible for initiating the engine's operation (starting) and maintaining the battery's charge level (charging).

Voltage Output

The electric potential difference delivered by a power source or circuit, measured in volts.