1
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
Two transformers of the same type, using the same grade of iron and conductor materials, are designed to work at the same flux and current densities; but the linear dimensions of one are two times those of the other in all respects. The ratio of $$kVA$$ of the two transformers closely equals
A
$$16$$
B
$$8$$
C
$$4$$
D
$$2$$
2
GATE EE 1992
MCQ (More than One Correct Answer)
+1
-0.3
Two transformers of different $$kVA$$ ratings workings in parallel share the load in proportion to their ratings when their
A
per unit leakage impedances on the same $$kVA$$ base are the same
B
per unit leakage impedances on their respective ratings are equal
C
ohmic values of the leakage impedances are inversely proportional to their ratings
D
ohmic values of the leakage magnetizing reactances are the same
3
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
Which of the following equations represents the Gauss's law in a homogeneous isotropic medium?
A
$$\iint\overrightarrow D.d\overrightarrow s=\iiint\rho\;dv$$
B
$$\nabla\times\overrightarrow H=\overrightarrow D$$
C
$$\nabla.\overrightarrow{J\;}+\rho=0$$
D
$$\nabla.\overrightarrow E=\frac\rho\varepsilon$$
4
GATE EE 1992
Fill in the Blanks
+1
-0
An electrostatic potential is given by $$\phi=2x\sqrt y$$ volt in the rectangular co-ordinate system. The magnitude of the electric field at x = 1 m,y = 1 m is _________V/m
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