1
GATE EE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the figure shown below, the chopper feeds a resistive load from a battery source. $$MOSFET$$ $$Q$$ is switched at $$250$$ $$kHz,$$ with a duty ratio of $$0.4.$$ All elements of the circuit are assumed to be ideal. GATE EE 2013 Power Electronics - Choppers and Commutation Techniques Question 27 English

The average source current in Amps in steady-state is

A
$$3/2$$
B
$$5/3$$
C
$$5/2$$
D
$$15/4$$
2
GATE EE 2013
MCQ (Single Correct Answer)
+2
-0.6
The Voltage Source Inverter $$(VSI)$$ shown in the figure below is switched to provide a $$50$$ $$Hz,$$ square-wave $$ac$$ output voltage ($${V_0}$$) across an $$R$$-$$L$$ load. Reference polarity of $${V_0}$$ and reference direction of the output current $${I_0}$$ are indicated in the figure. It is given that $$R = 3\,\,\Omega ,\,\,L = 9.55\,\,mH.$$ GATE EE 2013 Power Electronics - Inverters Question 12 English

Appropriate transition $$i.e,,$$ $$Zero$$ voltage switching $$(ZVS)/Zero$$ current switching $$(ZCS)$$ of the $$IGBTs$$ during turn - on/turn off is

A
$$ZVS$$ during turn off
B
$$ZVS$$ during turn -on
C
$$ZCS$$ during turn off
D
$$ZCS$$ during turn - on
3
GATE EE 2013
MCQ (Single Correct Answer)
+2
-0.6
The Voltage Source Inverter $$(VSI)$$ shown in the figure below is switched to provide a $$50$$ $$Hz,$$ square-wave $$ac$$ output voltage ($${V_0}$$) across an $$R$$-$$L$$ load. Reference polarity of $${V_0}$$ and reference direction of the output current $${I_0}$$ are indicated in the figure. It is given that $$R = 3\,\,\Omega ,\,\,L = 9.55\,\,mH.$$ GATE EE 2013 Power Electronics - Inverters Question 13 English

In the interval when $${V_0} < 0$$ and $${i_0} > 0$$ the pair of devices which conducts the load current is

A
$$Q1,Q2$$
B
$$Q3,Q4$$
C
$$D1,D2$$
D
$$D3,D4$$
4
GATE EE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the following network, the voltage magnitudes at all buses are equal to $$1$$ p.u., the voltage phase angles are very small, and the line resistance are negligible. All the line reactances are equal to $$j1\Omega .$$ GATE EE 2013 Power System Analysis - Load Flow Studies Question 11 English

The voltage phase angles in rad at buses $$2$$ and $$3$$ are

A
$${\theta _2} = - 0.1,\,\,\,{\theta _3} = - 0.2$$
B
$${\theta _2} = 0,\,\,\,{\theta _3} = - 0.1$$
C
$${\theta _2} = 0.1,\,\,\,{\theta _3} = 0.1$$
D
$${\theta _2} = 0.1,\,\,\,{\theta _3} = 0.2$$
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