Automotive Electronics Practice Test

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Study for the Automotive Electronics Test. Prepare with engaging flashcards and detailed multiple-choice questions. Each question comes with hints and explanations. Ace your exam with ease!

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What is the voltage drop across each bulb when two identical bulbs are connected in parallel to a 12 volt battery?

  1. 0 volt

  2. 1 volt

  3. 6 volts

  4. 12 volts

The correct answer is: 12 volts

When two identical bulbs are connected in parallel to a 12-volt battery, each bulb experiences the full voltage supplied by the battery. In a parallel circuit, the voltage across each component is the same as the source voltage. Therefore, since the battery provides 12 volts, each bulb will have a voltage drop of 12 volts across it. This concept is crucial in understanding how parallel circuits operate, as it allows each bulb to operate independently and receive the same voltage, ensuring they shine at their intended brightness. The fact that the bulbs are identical means they will share the same voltage, confirming that each one will see the full 12-volt potential provided by the battery.

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