1
GATE EE 2014 Set 3
Numerical
+1
-0
An $$LPF$$ wattmeter of power factor $$0.2$$ is having three voltage settings $$300V,$$ $$150V$$ and $$75V,$$ and two current settings $$5 A$$ and $$10A.$$ The full scale reading is $$150.$$ If the wattmeter is used with $$150V$$ voltage setting and $$10A$$ current setting, the multiplying factor of the wattmeter is __________.
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2
GATE EE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
The two signals $$S1$$ and $$S2,$$ shown in figure, are applied to $$Y$$ and $$X$$ deflection plates of an oscilloscope. GATE EE 2014 Set 3 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 11 English 1 GATE EE 2014 Set 3 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 11 English 2

The waveform displayed on the screen is

A
GATE EE 2014 Set 3 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 11 English Option 1
B
GATE EE 2014 Set 3 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 11 English Option 2
C
GATE EE 2014 Set 3 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 11 English Option 3
D
GATE EE 2014 Set 3 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 11 English Option 4
3
GATE EE 2014 Set 3
Numerical
+1
-0
The no-load speed of a 230 V separately excited dc motor is 1400 rpm. The armature resistance drop and the brush drop are neglected. The field current is kept constant at rated value. The torque of the motor in Nm for an armature current of 8 A is ____________.
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4
GATE EE 2014 Set 3
Numerical
+2
-0
A separately excited 300 V DC shunt motor under no load runs at 900 rpm drawing an armature current of 2 A. The armature resistance is 0.5 $$\Omega$$ and leakage inductance is 0.01 H. When loaded, the armature current is 15 A. Then the speed in rpm is _____
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