Which one of the four options is true about the circuit shown below:

F1 Vinanti Engineering 26.12.22 D4

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SSC JE Electrical 14 Nov 2022 Shift 3 Official Paper
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  1. superposition theorem can be applied because it contains current source
  2. superposition theorem cannot be applied because it contains diode
  3. reciprocity theorem can be applied
  4. superposition theorem can be applied

Answer (Detailed Solution Below)

Option 2 : superposition theorem cannot be applied because it contains diode
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The correct answer is option 2.

Superposition Theorem

The superposition theorem states that in any linear, bilateral network where more than one source is present, the response across any element in the circuit is the sum of the responses obtained from each source considered separately.

Limitations of superposition theorem

  • It cannot be used to calculate power in a circuit. It is only valid for the calculation of voltage and current.
  • It is not applicable for non-linear elements such as a diode, BJT, or OP-AMP because their VI characteristics are non-linear in nature.
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