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Recent questions tagged induction
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1
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A conducting bar of mass m is placed on two long conducting rails a distance l apart.
asked
Apr 4, 2019
in
JEE
by
kratos
jee
jee mains
electromagnetism
magnetism
induction
+2
votes
1
answer
Starting from the expression for the energy W = (1/2)LI^2, stored in a solenoid of self-inductance L to build up the current
asked
Apr 4, 2019
in
Class 12
by
kratos
electromagnetic induction
magnetic flux
cbse
class-12
induction
+3
votes
1
answer
A square loop of wire **** in the plane of the page. A decreasing magnetic field is directed into the page.
asked
Mar 24, 2019
in
Mathematics
by
kratos
inductance
induction
+2
votes
1
answer
Three identical rings move with the same speed on a horizontal surface in a uniform horizontal magnetic field normal to the planes of the rings.
asked
Mar 22, 2019
in
JEE
by
kratos
jee
electromagnetism
jee mains
magnetostatics
magnetism
class-12
induction
+2
votes
1
answer
The emf that appears in Faraday’* law is: A. around a conducting circuit
asked
Mar 20, 2019
in
Mathematics
by
kratos
inductance
induction
+3
votes
1
answer
Is there an induced emf (motional emf) in a conductor if it moves in a plane parallel to a magnetic field?
asked
Mar 20, 2019
in
Class 12
by
kratos
electromagnetic induction
magnetic flux
cbse
alternating current
class-12
induction
+1
vote
1
answer
An inductance L, a resistance R and battery B are connected in series with a switch *. The voltages across L and R are VL and VR respectively.
asked
Mar 19, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
aiims
series ac circuits
inductance
alternating current
class-12
induction
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vote
1
answer
A solid square plate is spun around different axes with the same angular speed. In which of the following choice of axis of rotation
asked
Mar 18, 2019
in
JEE
by
kratos
irodov
jee
mechanics
kvpy
inductance
jee mains
induction
dynamics of a solid body
+1
vote
1
answer
A straight conductor carries a current. Assume that all free electrons in the conductor move with the same drift velocity v.
asked
Mar 17, 2019
in
JEE
by
kratos
motion of charged particles
jee
electric circuits
electromagnetism
jee mains
magnetism
class-12
induction
+3
votes
1
answer
A thin conducting wire in the shape of a 'figure of eight' is situated with its circular loops in two planes making an angle of 120 with
asked
Mar 16, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
electrostatics
upsee
aiims
jee
electromagnetism
jee mains
magnetism
induction
+2
votes
1
answer
A circular wooden loop of mass m and radius R rest on a flat horizontal friction less surface.
asked
Mar 15, 2019
in
JEE
by
kratos
work
dynamics
class-11
jee
energy and power
center of mass
jee mains
electromagnetism
linear momentum
magnetism
induction
+2
votes
1
answer
A square loop of wire 0.3 meter on a side carries a current of 2 amperes and is located in a uniform 0.05-tesla magnetic field.
asked
Mar 11, 2019
in
JEE
by
kratos
jee
jee mains
electromagnetism
magnetostatics
magnetism
induction
+2
votes
1
answer
A metallic rod of length 'L' is rotated with angular frequency of 'ω' with one end hinged at the centre
asked
Mar 10, 2019
in
Class 12
by
kratos
electromagnetic induction
magnetic flux
cbse
class-12
induction
+1
vote
1
answer
A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure.
asked
Mar 5, 2019
in
Class 12
by
kratos
electromagnetic induction
magnetic flux
cbse
alternating current
class-12
induction
+1
vote
1
answer
A uniform but time-varying magnetic field B(t) exists in a circular region of radius a and is directed into the plane of
asked
Mar 3, 2019
in
JEE
by
kratos
electromagnetic induction
jee
inductance
jee mains
electromagnetism
magnetism
induction
+3
votes
1
answer
Faraday’* law states that an induced emf is proportional to:
asked
Mar 2, 2019
in
Mathematics
by
kratos
inductance
induction
+2
votes
1
answer
A conducting rod AB of mass m slides without friction over two long conducting rails separated by a distance l (Fig. 3.88).
asked
Mar 2, 2019
in
JEE
by
kratos
irodov
electromagnetic induction
electrodynamics
jee
jee mains
electromagnetism
magnetism
electric field
induction
+3
votes
1
answer
A uniform magnetic field B is directed out of the page, as shown above.
asked
Mar 1, 2019
in
JEE
by
kratos
jee
jee mains
electromagnetism
magnetism
induction
+2
votes
1
answer
A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its north pole leading.
asked
Feb 27, 2019
in
Mathematics
by
kratos
inductance
induction
+2
votes
1
answer
A rectangular conductor LMNO is placed in a uniform magnetic field of 0.5T.
asked
Feb 26, 2019
in
JEE
by
kratos
electromagnetic induction
magnetic flux
quadrilateral
cbse
class-8
magnetic effects of electric current
jee
jee mains
alternating current
class-12
induction
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