1
GATE EE 2004
MCQ (Single Correct Answer)
+2
-0.6
A $$MOSFET$$ rated for $$15 A,$$ carries a periodic current as shown in figure. The ON state resistance of the MOSFET is $$0.15$$ $$\Omega .$$ The average ON state loss in the $$MOSFET$$ is GATE EE 2004 Power Electronics - Power Semiconductor Devices Question 15 English
A
$$33.8$$ $$W$$
B
$$15.0$$ $$W$$
C
$$7.5$$ $$W$$
D
$$3.8$$ $$W$$
2
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
The circuit in figure shows a $$3$$ $$-$$ phase half $$-$$ wave rectifier. The source is a symmetrical, $$3$$ $$-$$ phase four $$-$$ wire system. The line-to-line voltage of the source is $$100 V.$$ The supply frequency is $$400$$ $$Hz.$$ The ripple frequency at the output is GATE EE 2004 Power Electronics - Single and Three Phase Rectifier Question 54 English
A
$$400$$ $$Hz$$
B
$$800$$ $$Hz$$
C
$$1200$$ $$Hz$$
D
$$2400$$ $$Hz$$
3
GATE EE 2004
MCQ (Single Correct Answer)
+2
-0.6
A 50 Hz, 4-pole, 500 MVA, 22 kV turbo-generator is delivering rated megavolt-amperes at 0.8 power factor. Suddenly a fault occurs reducing is electric power output by 40%. Neglect losses and assume constant power input to the shaft. The accelerating torque in the generator in MNm at the time of fault will be
A
1.528
B
1.018
C
0.840
D
0.509
4
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
The rated voltage of a $$3$$-phase power system is given as
A
RMS phase voltage
B
PEAK phase voltage
C
RMS line to line voltage
D
PEAK line to line voltage