Star-Delta Networks MCQs

Practice Star-Delta Networks MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Network TheoryStar-Delta Networks

A balanced star network has each arm equal to 6 ohm. Each resistance of its equivalent balanced delta network is?

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Correct Answer: D. 18 ohm

Explanation: For a balanced star-to-delta conversion, each delta resistance is 3 times the star resistance: 3×6 = 18 ohm.

Reference: Standard network theory: star-delta networks

Question 2

Network TheoryStar-Delta Networks

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Correct Answer: B. 4 ohm

Explanation: For a balanced delta-to-star conversion, each star resistance equals one-third of the delta resistance: 12/3 = 4 ohm.

Reference: Standard network theory: star-delta networks