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Electromagnetics
Waveguides
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1
GATE ECE 2024
MCQ (Single Correct Answer)
+1
-0.33

Let $\hat{i}$ and $\hat{j}$ be the unit vectors along $x$ and $y$ axes, respectively and let $A$ be a positive constant. Which one of the following statements is true for the vector fields $\vec{F}_1 = A(\hat{i}y + \hat{j}x)$ and $\vec{F}_2 = A(\hat{i}y − \hat{j}x)$?

A

Both $\vec{F}_1$ and $\vec{F}_2$ are electrostatic fields.

B

Only $\vec{F}_1$ is an electrostatic field.

C

Only $\vec{F}_2$ is an electrostatic field.

D

Neither $\vec{F}_1$ nor $\vec{F}_2$ is an electrostatic field.

2
GATE ECE 2022
MCQ (Single Correct Answer)
+1
-0.33

In a circuit, there is a series connection of an ideal resistor and an ideal capacitor. The conduction current (in Amperes) through the resistor is 2sin(t + $$\pi$$/2). The displacement current (in Amperes) through the capacitor is __________.

A
2sin(t)
B
2sin(t + $$\pi$$)
C
2sin(t + $$\pi$$/2)
D
0
3
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Two conducting spheres S1 and S2 of radii a and b (b>a) respectively, are placed far apart and connected by a long, thin conducting wire, as shown in the figure. GATE ECE 2017 Set 2 Electromagnetics - Maxwell Equations Question 35 English

For some charge placed on this structure, the potential and surface electric field on S1 are Va and Ea , and that on S2 are Vb and Eb, respectively, which of the following is CORRECT?

A
Va = Vb and Ea < Eb
B
Va > Vb and Ea > Eb
C
Va = Vb and Ea > Eb
D
Va > Vb and Ea = Eb
4
GATE ECE 2016 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Faraday's law of electromagnetic induction is mathematically described by which one of the following equations?
A
$$\nabla \bullet \,\mathop B\limits^ \to = \,0$$
B
$$\nabla \bullet \,\mathop D\limits^ \to = \,{\rho _v}$$
C
$$\nabla \, \times \,\mathop E\limits^ \to = \, - {{\partial \,\mathop B\limits^ \to \,} \over {\partial t}}$$
D
$$\nabla \, \times \,\mathop H\limits^ \to = \,\sigma \mathop E\limits^ \to + {{\partial \,\mathop D\limits^ \to \,} \over {\partial t}}$$
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Questions Asked from Marks 1
GATE ECE 2024 (1) GATE ECE 2022 (1) GATE ECE 2017 Set 2 (1) GATE ECE 2016 Set 3 (1) GATE ECE 2016 Set 2 (2) GATE ECE 2016 Set 1 (1) GATE ECE 2015 Set 2 (1) GATE ECE 2013 (1) GATE ECE 2011 (1) GATE ECE 2009 (1) GATE ECE 2007 (1) GATE ECE 2006 (2) GATE ECE 2003 (1) GATE ECE 1999 (2) GATE ECE 1998 (3) GATE ECE 1996 (1) GATE ECE 1995 (2) GATE ECE 1994 (1)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics