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481
GATE Electrical 2015 Set 2 | Question: 46
Two identical coils each having inductance $L$ are placed together on the same core. If an overall inductance of $\alpha L$ is obtained by interconnecting these two coils, the minimum value of $\alpha$ is ________.
Two identical coils each having inductance $L$ are placed together on the same core. If an overall inductance of $\alpha L$ is obtained by interconnecting these two coils...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
numerical-answers
+
–
0
votes
0
answers
482
GATE Electrical 2015 Set 2 | Question: 47
A three-winding transformer is connected to an $AC$ voltage source as shown in the figure. The number of turns are as follows: $N_{1} = 100, N_{2} = 50, N_{3} = 50$ ... in Ampere? $1\angle 90^{\circ}$ $1\angle 270^{\circ}$ $4\angle 90^{\circ}$ $4\angle 270^{\circ}$
A three-winding transformer is connected to an $AC$ voltage source as shown in the figure. The number of turns are as follows: $N_{1} = 100, N_{2} = 50, N_{3} = 50$. If t...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
+
–
0
votes
0
answers
483
GATE Electrical 2015 Set 2 | Question: 48
With an armature voltage of $100$ V and rated field winding voltage, the speed of a separately excited $DC$ motor driving a fan is $1000$ rpm, and its armature current is $10$ A. The armature resistance is $1 \Omega$. The load ... rotational losses, the value of the armature voltage (in Volt) which will reduce the rotor speed to $500$ rpm is _________.
With an armature voltage of $100$ V and rated field winding voltage, the speed of a separately excited $DC$ motor driving a fan is $1000$ rpm, and its armature current is...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
numerical-answers
+
–
0
votes
0
answers
484
GATE Electrical 2015 Set 2 | Question: 49
A three-phase, $11$ kV, $50$ Hz, $2$ pole, star connected, cylindrical rotor synchronous motor is connected to an $11$ kV, $50$ Hz source. Its synchronous reactance is $50 \Omega$ per phase, and its stator resistance is negligible. The ... torque is increased so that the stator current is $120$ A, then the load angle (in degrees) at this load is __________.
A three-phase, $11$ kV, $50$ Hz, $2$ pole, star connected, cylindrical rotor synchronous motor is connected to an $11$ kV, $50$ Hz source. Its synchronous reactance is $5...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
numerical-answers
+
–
0
votes
0
answers
485
GATE Electrical 2015 Set 2 | Question: 50
A $220$ V, $3$-phase, $4$-pole, $50$ Hz inductor motor of wound rotor type is supplied at rated voltage and frequency. The stator resistance, magnetizing reactance, and core loss are negligible. The maximum torque produced by the rotor ... resistance (in Ohm) which must be inserted in a rotor phase if the maximum torque is to occur at start is _________.
A $220$ V, $3$-phase, $4$-pole, $50$ Hz inductor motor of wound rotor type is supplied at rated voltage and frequency. The stator resistance, magnetizing reactance, and c...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
numerical-answers
+
–
0
votes
0
answers
486
GATE Electrical 2015 Set 2 | Question: 36
Two semi-infinite conducting sheets are placed at right angles to each other as shown in the figure. A point charge of $+Q$ is placed at a distance of $d$ from both sheets. The net force on the charge is $\dfrac{Q^{2}}{4\pi \in_{0}} \frac{Q}{d^{2}}$, where $K$ is ... $\dfrac{1-2\sqrt{2}}{8\sqrt{2}} \hat{t}+\dfrac{1-2\sqrt{2}}{8\sqrt{2}} \hat{j}$
Two semi-infinite conducting sheets are placed at right angles to each other as shown in the figure. A point charge of $+Q$ is placed at a distance of $d$ from both sheet...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
+
–
0
votes
0
answers
487
GATE Electrical 2015 Set 2 | Question: 9
Two semi-infinite dielectric regions are separated by a plane boundary at $y = 0$. The dielectric constants of region $1 (y < 0)$ and region $2 (y > 0)$ are $2$ and $5$, respectively. Region $1$ ... $3\hat{a}_{x}+10\hat{a}_{y}+0.8\hat{a}_{z}$
Two semi-infinite dielectric regions are separated by a plane boundary at $y = 0$. The dielectric constants of region $1 (y < 0)$ and region $2 (y 0)$ are $2$ and $5$, r...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
electric-field
dielectric-constant
+
–
0
votes
0
answers
488
GATE Electrical 2016 Set 1 | Question: 43
A single-phase thyristor-bridge rectifier is fed from a $230 V, 50 Hz$, single-phase $AC$ mains. If it is delivering a constant $DC$ current of $10 A$, at firing angle of $30^\circ$, then value of the power factor at $AC$ mains is $0.87$ $0.9$ $0.78$ $0.45$
A single-phase thyristor-bridge rectifier is fed from a $230 V, 50 Hz$, single-phase $AC$ mains. If it is delivering a constant $DC$ current of $10 A$, at firing angle of...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
new
gate2016-ee-1
ac-to-dc-conversion
magnitude-control
phase-control
+
–
0
votes
0
answers
489
GATE Electrical 2016 Set 1 | Question: 10
A temperature in the range of $−40 ^\circ C$ to $55^\circ C$ is to be measured with a resolution of $0.1^\circ C$. The minimum number of $ADC$ bits required to get a matching dynamic range of the temperature sensor is $8$ $10$ $12$ $14$
A temperature in the range of $−40 ^\circ C$ to $55^\circ C$ is to be measured with a resolution of $0.1^\circ C$. The minimum number of $ADC$ bits required to get a ma...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
new
gate2016-ee-1
analog-to-digital-converter
sampling
micro-controller
+
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