1
GATE EE 2012
+2
-0.6
In the circuit shown, an ideal switch $$S$$ is operated at $$100$$ $$kHz$$ with a duty ratio of $$50%$$. Given that $$\Delta {i_c}$$ is $$1.6$$ $$A$$ peak-to-peak and $${{\rm I}_0}$$ is $$5 A$$ $$dc,$$ the peak current in $$S$$ is
A
$$6.6$$ $$A$$
B
$$5.0$$ $$A$$
C
$$5.8$$ $$A$$
D
$$4.2$$ $$A$$
2
GATE EE 2012
+2
-0.6
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction mode. All the switching devices are ideal.

If the $$dc$$ bus voltage $${V_d} = 300\,\,V,$$ the power consumed by $$3$$-phase load is

A
$$1.5$$ $$kW$$
B
$$2.0$$ $$kW$$
C
$$2.5$$ $$kW$$
D
$$3.0$$ $$kW$$
3
GATE EE 2012
+2
-0.6
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction mode. All the switching devices are ideal.

The $$rms$$ value of load phase voltage is

A
$$106.1$$ $$V$$
B
$$141.4$$ $$V$$
C
$$212.2$$ $$V$$
D
$$282.8$$ $$V$$
4
GATE EE 2012
+2
-0.6
For the system shown below, SD1 and SD2 are complex power demands at bus $$1$$ and bus $$2$$ respectively. If $$\left| {{V_2}} \right| = 1$$ pu, the VAR rating of the capacitor (QG2) connected at bus $$2$$ is
A
$$0.2$$ pu
B
$$0.268$$ pu
C
$$0.312$$ pu
D
$$0.4$$ pu
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