BARC-2018 EE: Network Theory Quiz 3

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Question 1

Statement (I): Lossless network functions have only imaginary zeros and poles with only negative real parts.
Statement (II): Lossless network functions obey the separation property.

• ABoth Statement (I) and Statement
  (II) are individually true and Statement (II) is the correct explanation of Statement (I).
• BBoth Statement (I) and Statement
  (II) are individually true but Statement (II) is not the correct explanation of Statement (I).
• CStatement (I) is true but Statement (II) is false.
• DStatement (I) is false but Statement (II) is true.

Question 2

The condition on R, X_L and X_C such that current is in phase with applied voltage will be

• A
• B
• C
• D

Question 3

For a driving point function, with n = degree of numerator polynomial and m = degree of denominator polynomial, the relationship connecting n and m is

• A
• B
• C
• D

Question 4

In the circuit shown below switch S is kept at position 1 for a long time. Then at t = 0 the switch is transferred to position 2. The magnitude voltage across inductor at t = 0⁺ is --------- (in volts).

• A100
• B200
• C300
• D400

Question 5

Three equal star-connected inductors take 10 kW at power factor 0.8 when connected to a 440 V, 3 - φ, 3 wire supply. The two single phase wattmeters are used to measure the power in the circuit. ________ A is the line currents if one of the inductor is short-circuited.

• A32.86
• B42.69
• C49.19
• D52.75

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