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Recent questions tagged electromagnetism
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1
GATE201342
Two magnetically uncoupled inductive coils have $Q$ factors $q_1$ and $q_2$ at the chosen operating frequency. Their respective resistances are $R_1$ and $R_2$. When connected in series, their effective $Q$ factor at the same operating frequency is $q_1R_1+q_2R_2$ $q_1/R_1+q_2/R_2$ $(q_1R_1+q_2R_2)/(R_1+R_2)$ $q_1R_2+q_2R_2$
asked
Feb 12, 2017
in
Electromagnetic Fields
by
piyag476
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1.5k
points)
gate2013ee
coils
electromagnetism
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0
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2
GATE201334
A dielectric slab with $500$ $mm$ $×$ $500$ $mm$ crosssection is $0.4$ $m$ long. The slab is subjected to a uniform electric field of $E=6a_x+8a_y$ $KV/mm$. The relative permittivity of the dielectric material is equal to $2$. The value of constant $\varepsilon _0$ is $8.85*10^{12} F/M$ . The energy stored in the dielectric in Joules is $8.85*10^{11}$ $8.85*10^{15}$ $88.5$ $885$
asked
Feb 12, 2017
in
Electromagnetic Fields
by
piyag476
(
1.5k
points)
gate2013ee
coulombslaw
electromagnetism
0
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0
answers
3
GATE201310
The flux density at a point in space is given by $B=4xa_x+2kya_y+8a_z$ $Wb/m^2$. The value of constant k must be equal to $2$ $0.5$ $0.5$ $2$
asked
Feb 12, 2017
in
Electromagnetic Fields
by
piyag476
(
1.5k
points)
gate2013ee
magneticflux
electromagnetism
0
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0
answers
4
GATE2015210
A circular turn of radius $1$ m revolves at $60$ rpm about its diameter aligned with the xaxis as shown in the figure. The value of $\mu_{0}$ is $4\pi \times 10^{7}$ in SI unit. If a uniform magnetic field intensity $\vec{H}=10^{7}\hat{z}$ A/m is applied, then the peak value of the induced voltage, $V_{turn}$ ( in Volts), is _________.
asked
Feb 12, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
magneticfieldintensity
electromagnetism
electromagnetictheory
0
votes
0
answers
5
GATE2016231
The line integral of the vector field $F=5xz \hat{i}+(3x^{2}+2y)\hat{j}+x^{2}z\hat{k}$ along a path from $(0,0,0)$ to $(1,1,1)$ parametrized by $(t, t^{2}, t)$ is ________.
asked
Jan 30, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.2k
points)
gate2016ee2
electromagnetism
electromagnetictheory
field
0
votes
0
answers
6
GATE2016216
A parallel plate capacitor filled with two dielectrics is shown in the figure below. If the electric field in the region $A$ is $4 kV/cm$, the electric field in the region $B$, in $kV/cm$, is $1$ $2$ $4$ $16$
asked
Jan 30, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2016ee2
electromagnetism
capacitance
relativepermitivity
0
votes
0
answers
7
GATE2016138
Two electric charges $q$ and $−2q$ are placed at $(0,0)$ and $(6,0)$ on the $xy$ plane. The equation of the zero equipotential curve in the $xy$ plane is $x=2$ $y=2$ $x^{2}+y^{2}=2$ $(x+2)^{2}+y^{2}=16$
asked
Jan 30, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.2k
points)
gate2016ee1
electromagnetism
electromagnetictheory
coulomb'slaw
0
votes
0
answers
8
GATE2016114
A softiron toroid is concentric with a long straight conductor carrying a direct current $I$. If the relative permeability $\mu_{r}$ of softiron is $100$, the ratio of the magnetic flux densities at two adjacent points located just inside and just outside the toroid, is ________.
asked
Jan 30, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
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9.2k
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gate2016ee1
currentcarryingconductor
electromagnetism
faraday’slaw
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