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1
GATE ECE 1989
MCQ (Single Correct Answer)
+2
-0.6
The electric field strength at a far-off point P due to a point charge + q, located at the origin O is 100 millivolts/metre. The point charge is now enclosed by a perfectly conducting hollow metal sphere with its centre at the origin O. The electric field strength at the point, P,
A
remains unchanged in its magnitude and direction
B
remains unchanged in its magnitude but reverse in direction
C
would be that due to a dipole formed by the charge + q at O and - q induced
D
would be zero
2
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
Vector potential is a vector
A
whose curl is equal to the magnetic flux density
B
whose curl is equal to the electric field intensity
C
whose divergence is equal to the electric potential
D
which is equal to the vector product E x H
3
GATE ECE 1988
MCQ (More than One Correct Answer)
+2
-0
On either side of a charge-free interface between two media,
A
the normal components of the electric field are equal
B
the tangential components of the electric field are equal
C
the normal components of the electric flux density are equal
D
the tangential components of the electric flux density are equal
4
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
An electrostatic field is said to be conservative when
A
The divergence of the field is equal to zero.
B
The curl of the field is equal to zero.
C
The curl of the field is equal to $$ - {{\partial \,B} \over {\partial \,t}}$$.
D
The Laplacian of the field is equal to $$\mu \,\,\varepsilon {{{\partial ^2}\,E} \over {\partial \,{t^2}}}$$.
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Network Theory
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