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5-question demo · Sikkim State Engineering Services - Electrical Engineering

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Question 1 of 5
What are the differences between ideal and practical sources?
Why: The answer provides a structured comparison with key points, example, and conclusion meeting the 50-80 word requirement for short answer questions. It covers voltage/current regulation and realism.
Question 2 of 5
Distinguish between passive and active components.
Why: Distinguishes based on energy handling, power gain, and linearity with example, structured for full marks.
Question 3 of 5
Write the volt-ampere relations of R, L, C parameters.
Why: Provides exact mathematical relations with time-domain equations, energy storage, and example.
Question 4 of 5
In a parallel combination of conductances G1 = 4 ℧ and G2 = 8 ℧, what is the equivalent conductance GT?
A A) 12 ℧
B B) 3/8 ℧
C C) 1/12 ℧
D D) 2 ℧
Why: For parallel conductances, total conductance GT = G1 + G2 = 4 + 8 = 12 ℧. Option A matches this value. Note: The source mentions equivalent resistance as 3/8 Ω which corresponds to GT = 8/3 ℧ for R1=2Ω, R2=1Ω, but using given values directly gives 12 ℧.
Question 5 of 5
The resistivity of an ideal conductor is:
A A) Infinite
B B) Nearly zero
C C) High
D D) Zero
Why: Electrical resistivity measures how strongly a material resists current flow. Ideal conductors have resistivity nearly zero, allowing perfect current flow without opposition. Insulators have high resistivity.