GATE EE 2017 Set 2 | Magnetostatics Question 8 | Electromagnetic Fields

GATE EE 2017 Set 2

MCQ (Single Correct Answer)

-0.3

The figures show diagrammatic representations of vector fields $$\overrightarrow X,\;\overrightarrow Y,\;and\;\overrightarrow Z$$ respectively. Which one of the following choices is true? GATE EE 2017 Set 2 Electromagnetic Fields - Magnetostatics Question 26 English

GATE EE 2017 Set 2 Electromagnetic Fields - Magnetostatics Question 26 English

$$\nabla.\overrightarrow X\;=\;0,\;\nabla\times\overrightarrow Y\;\neq\;0,\;\nabla\times\overrightarrow Z\;=\;0$$

$$\nabla.\overrightarrow X\;\neq\;0,\;\nabla\times\overrightarrow Y\;=\;0,\;\nabla\times\overrightarrow Z\;\neq\;0$$

$$\nabla.\overrightarrow X\;\neq\;0,\;\nabla\times\overrightarrow Y\;\neq\;0,\;\nabla\times\overrightarrow Z\;\neq\;0$$

$$\nabla.\overrightarrow X\;=\;0,\;\nabla\times\overrightarrow Y\;=\;0,\;\nabla\times\overrightarrow Z\;=\;0$$

GATE EE 2015 Set 1

MCQ (Single Correct Answer)

-0.3

A steady current I is flowing in the −x direction through each of two infinitely long wires at $$y=\pm\frac L2$$ as shown in the figure. The permeability of the medium is $$\mu_0$$. The $$\overrightarrow B$$ field at (0,L,0) is GATE EE 2015 Set 1 Electromagnetic Fields - Magnetostatics Question 24 English

GATE EE 2015 Set 1 Electromagnetic Fields - Magnetostatics Question 24 English

$$\frac{-4\mu_0I}{3\mathrm{πL}}\widehat z$$

$$\frac{4\mu_0I}{3\mathrm{πL}}\widehat z$$

$$0$$

$$\frac{-3\mu_0I}{4\mathrm{πL}}\widehat z$$

GATE EE 2013

MCQ (Single Correct Answer)

-0.3

The flux density at a point in space is given by $$\overrightarrow B=\;4x{\widehat a}_x\;+\;2ky{\widehat a}_y\;+\;8{\widehat a}_z\;\;Wb/m^2$$. The value of constant k must be equal to

-2

-0.5

+0.5

GATE EE 2006

MCQ (Single Correct Answer)

-0.3

Which of the following statements holds for the divergence of electric and magnetic flux densities?

Both are zero

These are zero for static densities but non zero for time varying densities

It is zero for the electric flux density

It is zero for the magnetic flux density

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