Question
Which of the element in the following is not bilateral ?
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
Transistor
Non-Bilateral Component Analysis
A bilateral element is an electrical component whose properties remain the same regardless of the direction of current flow or voltage polarity. Conversely, a unilateral element exhibits different properties depending on the direction of current or voltage.
Component Properties
- Resistor: Exhibits the same resistance irrespective of the current direction. It is a bilateral element.
- Inductor: Its inductance value does not depend on the direction of current flow. It is a bilateral element.
- Capacitor: Its capacitance is independent of the voltage polarity applied across it. It is generally considered a bilateral element.
- Transistor: The operational characteristics of a transistor (like amplification or switching) are highly dependent on the direction of current flow and voltage polarities across its terminals (e.g., base-emitter, collector-emitter). Therefore, it is a unilateral element.
Since a transistor's behavior is direction-dependent, it is not a bilateral element.
Conclusion
The transistor is the element that is not bilateral.
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