1
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
The L-C circuit shown in the figure has an inductance $$L=1mH$$ and a capacitance $$C = 10\mu F.$$

The $$L$$-$$C$$ circuit $$Q.13$$ is used to commutate a thyristor, which is initially carrying a current of $$5A$$ as shown in the figure below. The values and initial conditions of $$L$$ and $$C$$ are the same as in $$Q.13.$$ The switch is closed at $$t = 0.$$ If the forward drop is negligible, the time taken for the device to turn off is

GATE EE 2010 Power Electronics - Choppers and Commutation Techniques Question 24 English
A
$$52\mu s$$
B
$$156\mu s$$
C
$$312\mu s$$
D
$$26\mu s$$
2
GATE EE 2010
MCQ (Single Correct Answer)
+1
-0.3
Consider a step voltage wave of magnitude $$1$$ pu travelling along a loss less transmission line that terminates in a reactor. The voltage magnitude across the reactor at the instant the travelling wave reaches the reactor is GATE EE 2010 Power System Analysis - Parameters and Performance of Transmission Lines Question 68 English
A
$$-1$$ pu
B
$$1$$ pu
C
$$2$$ pu
D
$$3$$ pu
3
GATE EE 2010
MCQ (Single Correct Answer)
+1
-0.3
Consider two buses connected by an impedance of $$\left( {0 + j5} \right)\Omega .$$ The bus $$1$$ voltage is $$100$$$$\angle {30^ \circ }\,\,\,V,$$ and bus $$2$$ voltage is $$100\angle {0^ \circ }\,\,\,V,$$ The real and reactive power supplied by bus $$1,$$ respectively, are
A
$$1000$$ $$W,$$ $$268$$ VAR
B
$$-1000$$ $$W,$$ $$-134$$ VAR
C
$$276.9$$ $$W,$$ $$-56.7$$ VAR
D
$$-276.9$$ $$W,$$ $$56.7$$ VAR
4
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
Consider a three-core, three phase, $$50$$ $$Hz$$, $$11$$ $$kV$$ cable whose conductors are denoted as $$R, Y$$ and $$B$$ in the figure. The inter-phase capacitance $$\left( {{C_1}} \right)$$ between each pair of conductors is $$0.2$$ $$\mu F$$ and the capacitance between each line conductor and the sheath is $$0.4$$ $$\mu F$$ . The per-phase charging current is GATE EE 2010 Power System Analysis - Parameters and Performance of Transmission Lines Question 31 English
A
$$2.0$$ $$A$$
B
$$2.4$$ $$A$$
C
$$2.7$$ $$A$$
D
$$3.5$$ $$A$$
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