Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

If an open occurs in a circuit, current:

Opening a circuit breaks the path the current needs to flow, so there is no complete loop for charge to move. With no closed path, the current is effectively zero, which is a decrease from the nonzero current you'd have when the circuit is closed. In real circuits there may be tiny leakage, but for most purposes the current in an open circuit is considered zero.

Opening a circuit breaks the path the current needs to flow, so there is no complete loop for charge to move. With no closed path, the current is effectively zero, which is a decrease from the nonzero current you'd have when the circuit is closed. In real circuits there may be tiny leakage, but for most purposes the current in an open circuit is considered zero.