Question:

“A linear bilateral network containing several sources... the algebraic sum of the currents or voltages of each individual source considered separately with all others made inoperative” is according to:

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Superposition theorem: solve one source at a time, then add effects linearly. Valid only for linear circuits.
Updated On: July 22, 2025
  • Maximum power transfer theorem
  • Superposition theorem
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The Correct Option is B

Solution and Explanation

The given statement describes that in a linear bilateral network containing multiple sources, the overall current or voltage is the algebraic sum of the currents or voltages produced by each source separately when all other sources are inactive. This is a classic description of the Superposition Theorem.

The Superposition Theorem is fundamental in electrical engineering, particularly useful when analyzing circuits with multiple independent sources. It involves the following steps:

  1. Deactivate all sources except one. For voltage sources, replace them with a short circuit. For current sources, replace with an open circuit.
  2. Calculate the contribution of the active source. Analyze the circuit to find the currents or voltages due to the active source.
  3. Repeat the process for each source. Independently activate each source while deactivating others and calculate their contributions.
  4. Sum all contributions algebraically. Combine all calculated currents or voltages to find the total effect in the circuit.

This theorem is applicable only to linear circuits, which maintain linearity proportions between input and output signals. Therefore, the correct answer for the given statement is the Superposition Theorem.

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