1
GATE ECE 2003
MCQ (Single Correct Answer)
+1
-0.3
The unit of $$\nabla\times\mathrm H$$ is
A
Ampere
B
Ampere/meter
C
Ampere/meter2
D
Ampere - meter
2
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
An electric field on a plane is described by its potential V = $$20\left(r^{-1}\;+\;r^{-2}\right)$$ where r is the distance from the source. The field is due to
A
a monopole
B
a dipole
C
both a monopole and a dipole
D
a quadrupole
3
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
Identify which one of the following will NOT satisfy the wave equation.
A
$$50{e^{j\left( {\omega t - 3z} \right)}}$$
B
$$\sin \left[ {\omega \left( {10z + 5t} \right)} \right]$$
C
$$\cos \left( {{y^2} + 5t} \right)$$
D
$$\sin \left( x \right).\cos \left( t \right)$$
4
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
A loop is rotating about the y-axis in a magnetic field $$$\overrightarrow B\;=\;B_0\cos\left(\mathrm{ωt}\;+\;\mathrm\phi\;\right)\;{\overrightarrow a}_x\;\mathrm T .$$$ The voltage in the loop is
A
zero
B
due to rotation only
C
due to transformer action only
D
due to both rotation and transformer action
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