NEIEP Mechanics Practice Exam

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Prepare for the NEIEP Mechanics Exam with multiple choice questions, hints, and detailed explanations. Ace your test and advance your career!

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What are the leads called on a silicon controlled rectifier?

  1. Source, gate, drain

  2. Anode, gate, cathode

  3. Base, emitter, collector

  4. Positive, negative, ground

The correct answer is: Anode, gate, cathode

The leads on a silicon controlled rectifier (SCR) are indeed referred to as the anode, gate, and cathode. The anode is the terminal where the positive voltage is applied, allowing current to flow into the SCR when activated. The gate is the control terminal that triggers the device, enabling it to conduct electricity. The cathode is the terminal through which the current exits the SCR. Understanding these terms is critical, as they describe the functionality and operation of the SCR in electrical circuits, particularly in controlling power and rectifying current. This knowledge is essential for effectively utilizing SCRs in various applications, including motor control and power management systems.

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