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Recent questions tagged magnetic fields
+2
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1
answer
A homogeneous proton beam accelerated by a potential difference V = 600 kV has a round cross-section of radius r = 5.0 mm.
asked
Apr 6, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
electric current
jee
jee mains
+2
votes
1
answer
Uniform electric and magnetic fields with strength E and induction B respectively are directed along the y axis
asked
Apr 4, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+3
votes
1
answer
Magnetron is a device consisting of a filament of radius a and a coaxial cylindrical anode of radius b
asked
Apr 3, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+1
vote
1
answer
Two parallel wires, 4 cm apart, carry currents of 2 A and 4 A respectively, in the same direction.
asked
Apr 3, 2019
in
JEE
by
kratos
magnetic fields
magnetic field due to a current
jee
kvpy
moving charges
jee mains
magnetism
+3
votes
1
answer
An electron moves with a velocity 1 × 10^3 m/* in a magnetic field of induction 0.3 T at an angle 30°.
asked
Apr 2, 2019
in
Class 12
by
kratos
magnetic fields
irodov
neet
electrodynamics
electromagnetic induction
electricity
jee
aiims
jee mains
electromagnetism
magnetism
class-12
+1
vote
1
answer
From the surface of a round wire of radius a carrying a direct current I an electron escapes with a velocity
asked
Apr 2, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+1
vote
1
answer
Demonstrate that electrons move in a betatron along a round orbit of constant radius provided the magnetic
asked
Mar 27, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+1
vote
1
answer
In a betatron the magnetic flux across an equilibrium orbit of radius r = 25 cm grows during the acceleration
asked
Mar 24, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+3
votes
1
answer
An electron and a proton are both initially moving with the same speed and in the same direction at 90^◦ to the same
asked
Mar 20, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+3
votes
1
answer
Two parallel wires each of length 10 cm are 0.5 cm apart. A film of water is formed between them.
asked
Mar 12, 2019
in
Class 12
by
kratos
magnetic fields
neet
fluid mechanics
magnetic effects of electric current
jee
aiims
jee mains
class-12
interference
+1
vote
1
answer
In an experiment , setup A consists of two parallel wires which carry currents in opposite directions as shown in the figure.
asked
Mar 10, 2019
in
JEE
by
kratos
magnetic fields
magnetic field due to a current
jee
moving charges
class-10
electromagnetism
jee mains
magnetism
class-12
+1
vote
1
answer
For the following functions, calculate the derivative d /d t (f ◦ σ) using the chain rule.
asked
Mar 4, 2019
in
JEE
by
kratos
magnetic fields
cbse
fluids
jee
the first law of thermodynamics
jee mains
class-12
+2
votes
1
answer
A charged particle is projected into a region of uniform, parallel, Vector E and Vector B fields.
asked
Feb 23, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+1
vote
1
answer
An electron emitted by a heated cathode and accelerated through a potential difference of 2.0 kV,
asked
Feb 21, 2019
in
Physics
by
kratos
magnetic fields
irodov
neet
electrodynamics
jee
aiims
moving charges
dual nature of radiation and matter
jee mains
magnetism
class-12
atomic physics
+2
votes
1
answer
A charged particle with specific charge q/m starts moving in the region of space where there are uniform mutually
asked
Feb 20, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+1
vote
1
answer
An electron travels due north through a vacuum in a region of uniform magnetic field Vector B that is also directed due north. It will:
asked
Feb 14, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+3
votes
1
answer
Two planets A and B travel counter clockwise in circular orbits around a fixed star. The radii of their
asked
Feb 11, 2019
in
Class 12
by
kratos
magnetic fields
class-11
kvpy
class-12
gravitation
+1
vote
1
answer
A proton beam passes without deviation through a region of space where there are uniform transverse mutually
asked
Feb 10, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
moving charges and magnetism
jee advanced
jee mains
+1
vote
1
answer
A system consists of a long cylindrical anode of radius a and a coaxial cylindrical cathode of radius b (b < a).
asked
Feb 1, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+1
vote
1
answer
A current is clockwise around the outside edge of this page and a uniform magnetic field is directed parallel to the page,
asked
Jan 28, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
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