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Recent questions tagged magnetic field
+3
votes
1
answer
A parallel-plate capacitor with area of each plate equal to * and the separation between them to d is put
asked
Apr 6, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
+3
votes
1
answer
N = 2.5.10^3 wire turns are uniformly wound on a wooden toroidal core of very small cross-section.
asked
Apr 5, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
+1
vote
1
answer
An electric current i enters and leaves a uniform circular wire of radius a through diametrically opposite points.
asked
Apr 5, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
electromagnetism
class-12
+3
votes
1
answer
Consider a long straight cylindrical wire with radius R = 0.1 m is carrying the non-uniform current density which points along the axis
asked
Apr 4, 2019
in
JEE
by
kratos
irodov
electrodynamics
cbse
jee main 2020
electromagnetic waves
jee
magnetic field
jee mains
class-12
+1
vote
1
answer
Unit of luminous intensity is A. m B. kg C. cd
asked
Apr 3, 2019
in
Mathematics
by
kratos
magnetic field
electromagnetism
+3
votes
1
answer
A straight wire carrying a current I2 runs along the axis of a circular current I1 (Fig.). What is the force of interaction between the currents?
asked
Apr 2, 2019
in
JEE
by
kratos
electromagnetic induction
irodov
electrodynamics
jee
magnetic field
jee mains
+1
vote
1
answer
Whenever there is force on magnetic pole, there exists A. magnetic field B. electric field C. current D. voltage
asked
Apr 2, 2019
in
Mathematics
by
kratos
magnetic field
electromagnetism
+1
vote
1
answer
An infinitely long, straight conductor AB is fixed and a current is passed through it. Another movable
asked
Apr 2, 2019
in
JEE
by
kratos
magnetic effects of current
magnetic field
jee
jee mains
+2
votes
1
answer
Two long, thin, parallel conductors carrying equal currents in the same direction are fixed parallel to the x-axis,
asked
Apr 1, 2019
in
JEE
by
kratos
electromagnetic induction
irodov
electrodynamics
cbse
jee
magnetic field
moving charges and magnetism
electromagnetism
jee mains
current carrying conductor
magnetism
class-12
+2
votes
1
answer
A thin straight rod of length 2a carrying a uniformly distributed charge q is located in vacuum.
asked
Mar 31, 2019
in
JEE
by
kratos
irodov
electric capacitance
electrodynamics
jee
magnetic field
jee mains
+3
votes
1
answer
A uniformly charged non conducting disc with surface charge density 10 nC/m^2 having radius 3 cm.
asked
Mar 31, 2019
in
Class 12
by
kratos
irodov
neet
electrodynamics
aiims
jee
magnetic field
electric charges and fields
jee mains
class-12
+2
votes
1
answer
A conductor carrying direct current is split into a circular loop (Fig.).
asked
Mar 31, 2019
in
JEE
by
kratos
jee
jee mains
magnetic field
+2
votes
1
answer
Define Magnetic equator.
asked
Mar 28, 2019
in
JEE
by
kratos
cbse
jee
magnetic field
jee mains
class-12
+1
vote
1
answer
A long round dielectric cylinder is polarized so that the vector P = αr, where α is a positive constant and r is the distance from the axis.
asked
Mar 28, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
electric field
+3
votes
1
answer
A charged particle is accelerated through a potential difference of 12kV and acquires a speed of 1.0 x 10^6m/*.
asked
Mar 27, 2019
in
JEE
by
kratos
class-12
jee
jee mains
magnetic field
+1
vote
1
answer
In which case will the particle describe a helical path with axis along the positive z direction,
asked
Mar 27, 2019
in
JEE
by
kratos
class-12
magnetic field
jee
jee mains
+3
votes
1
answer
A proton is projected with velocity vector V = 2i in a region where magnetic field vector B = ( i + 3 j + 4 k)µT
asked
Mar 26, 2019
in
JEE
by
kratos
electromagnetic induction
cbse
jee
magnetic field
jee mains
magnetism
class-12
+1
vote
1
answer
A particle of specific charge (q/m) is projected from the origin of coordinates with initial velocity [u i - v j].
asked
Mar 25, 2019
in
JEE
by
kratos
jee
magnetic field
moving charges and magnetism
jee advanced
jee mains
class-12
+2
votes
1
answer
Write Fleming'* left hand rule.
asked
Mar 24, 2019
in
Class 10
by
kratos
magnetic effects of electric current
magnetic field
class-9
class-10
electromagnetism
magnetism
+3
votes
1
answer
A rectangular coil PQ has 2n turns, an area 2a and carries a current 2I, (refer figure).
asked
Mar 23, 2019
in
JEE
by
kratos
class-12
jee
jee mains
magnetic field
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