GATE 2007 ECE Network Theory - Complete Video Solutions with Answers

2007

1. An independent voltage source in series with an impedance Zs = Rs + j Xs delivers a maximum average power to a load impedance ZL when
a) ZL = Rs + jXs
b) ZL = Rs
c) ZL = jXs
d) ZL = Rs - jXs

Answer:D
Solution:      https://www.youtube.com/watch?v=o9Awvha9eAg



2. The RC circuit shown in the figure is a
a) Low Pass Filter
b) High Pass Filter
c) Band Pass Filter
d) Band Reject Filter

Answer:C
Solution:    https://www.youtube.com/watch?v=0f9FRURijpw




3. Two series resonant filters are as shown in the figure. Let the 3-dB bandwidth of filter 1 is B1 and that of Filter 2 is B2. The value of B1/B2 is
a) 4
b) 1
c) 1/2
d) 1/4

Answer:D
Solution:    https://www.youtube.com/watch?v=lMKem0ESd64




4. For the circuit shown in the figure, the Thevenin's voltage and resistance looking into X-Y are
a) 4/3 volts. 2 Ω
b) 4 volts. 2/3 Ω
c) 4/3 volts. 2/3 Ω
d) 4/ volts. 2 Ω

Answer:D
Solution:     https://www.youtube.com/watch?v=M9_ZDSgAKLI




5. In the circuit shown, Vc is 0 volts at t = 0 sec. For t > 0, the capacitor current ic(t), where t is in seconds, is given by


Answer:A
Solution:     https://www.youtube.com/watch?v=U9lh2d-zwTg




6. In the AC network shown in the figure, the phasor voltage VAB(in volts) is:


Answer:D
Solution:    https://www.youtube.com/watch?v=CNz1YebFlDw





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