1
GATE EE 2017 Set 1
Numerical
+1
-0
The following measurements are obtained on a single phase load: $$V = 220 V$$ $$\pm$$$$1$$%. $${\rm I}$$$$= 5.0$$ $$A$$ $$\pm \,1$$% and $$W=555$$ $$W$$ $$\pm \,2$$%. If the power factor is calculated using these measurements, the worst case error in the calculated power factor in percent is _________. (Give answer up to one decimal place.)
2
GATE EE 2017 Set 2
+1
-0.3
Two resistors with nominal resistance values $${R_1}$$ and $${R_2}$$ have additive uncertainties $$\Delta {R_1}$$ and $$\Delta {R_2},$$ respectively. When these resistances are connected in parallel, the standard deviation of the error in the equivalent resistance $$R$$ is
A
$$\pm \sqrt {{{\left( {{{\partial R} \over {\partial {R_1}}}\Delta {R_1}} \right)}^2} + {{\left( {{{\partial R} \over {\partial {R_2}}}\Delta {R_2}} \right)}^2}}$$
B
$$\pm \sqrt {{{\left( {{{\partial R} \over {\partial {R_2}}}\Delta {R_1}} \right)}^2} + {{\left( {{{\partial R} \over {\partial {R_1}}}\Delta {R_2}} \right)}^2}}$$
C
$$\pm \sqrt {{{\left( {{{\partial R} \over {\partial {R_1}}}} \right)}^2}\Delta {R_2} + {{\left( {{{\partial R} \over {\partial {R_2}}}} \right)}^2}\Delta {R_1}}$$
D
$$\pm \sqrt {{{\left( {{{\partial R} \over {\partial {R_1}}}} \right)}^2}\Delta {R_1} + {{\left( {{{\partial R} \over {\partial {R_2}}}} \right)}^2}\Delta {R_2}}$$
3
GATE EE 2015 Set 2
Numerical
+1
-0
A capacitive voltage divider is used to measure the bus voltage Vbus in a high-voltage 50Hz AC system as shown in the figure. The measurement capacitors C1 and C2 have tolerances of $$\pm$$10% on their nominal capacitance values. If the bus voltage Vbus is 100 kV rms, the maximum rms output voltage Vout (in kV), considering the capacitor tolerances, is __________. 4
GATE EE 1995
Fill in the Blanks
+1
-0
Fringing in capacitive type transducer can be minimized by providing a _________
GATE EE Subjects
Electric Circuits
Electromagnetic Fields
Signals and Systems
Electrical Machines
Engineering Mathematics
General Aptitude
Power System Analysis
Electrical and Electronics Measurement
Analog Electronics
Control Systems
Power Electronics
Digital Electronics
EXAM MAP
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