(1.1.11.1.3-12) A triac thyristor functions...

Question 1 / 270705eccefa4bacbc34ba4d4862a

Question 1 of 270705eccefa4bacbc34ba4d4862a

(1.1.11.1.3-12) A triac thyristor functions as a control device and can be thought of to function similarly as which of the following circuits?

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Question 1 of 27070

(1.1.11.1.3-12) A triac thyristor functions as a control device and can be thought of to function similarly as which of the following circuits?

🔍 Key Concepts

• TRIAC operation as a bidirectional AC switch • Relationship between TRIAC and SCR (silicon-controlled rectifier) • How conduction direction (one-way vs two-way) affects the internal equivalent circuit

💭 Think About

• Ask yourself: Does a TRIAC conduct current in one direction like a standard SCR, or in both directions? How does that influence its internal equivalent circuit? • Which option best matches a device that can be triggered into conduction in EITHER direction on an AC waveform using a common control terminal? • Consider how an SCR is structured internally. What would you need to change or 'add' to model a device that works on both the positive and negative half cycles but still uses one gate/control lead?

✅ Before You Answer

• Check which options are bidirectional vs unidirectional in how they behave with current flow. • Verify which option explicitly involves an SCR-like structure and a common gate/control element. • Eliminate any options that describe components (like specific transistor or capacitor arrangements) that do NOT obviously explain symmetrical conduction on AC.

Question 1 of 27070

(1.1.11.1.3-12) A triac thyristor functions as a control device and can be thought of to function similarly as which of the following circuits?

a diode in series with a temperature sensitive capacitor

two NPN transistors in parallel with a common base lead

a triode tube with an extra heavy grid element

a bidirectional SCR with a common gate

Question 1 / 270705eccefa4bacbc34ba4d4862a

Question 1 of 270705eccefa4bacbc34ba4d4862a

(1.1.11.1.3-12) A triac thyristor functions as a control device and can be thought of to function similarly as which of the following circuits?

Back

Question 1 of 27070

(1.1.11.1.3-12) A triac thyristor functions as a control device and can be thought of to function similarly as which of the following circuits?