Physics-
General
Easy
Question
In the figure shown the potential energy U of a particle is plotted against its position ' x ' from origin. Then which of the following statement is correct.

is in stable equilibrium
is in stable equilibrium
is in stable equilibrium
- none of these
The correct answer is: none of these
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In the figure shown there are two semicircles of radii
and
in which a current
is flowing. The magnetic induction at the centre
will be

In the figure shown there are two semicircles of radii
and
in which a current
is flowing. The magnetic induction at the centre
will be

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Two long parallel wires are at a distance
apart. They carry steady equal current flowing out of the plane of the paper as shown. The variation of the magnetic field along the line
is given by
Two long parallel wires are at a distance
apart. They carry steady equal current flowing out of the plane of the paper as shown. The variation of the magnetic field along the line
is given by
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An infinitely long wire carrying current
is along
-axis such that its one end is at point (
while the wire extends upto
. The magnitude of magnetic field strength at point
is

An infinitely long wire carrying current
is along
-axis such that its one end is at point (
while the wire extends upto
. The magnitude of magnetic field strength at point
is

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In the given figure and magnetic field at
will be

In the given figure and magnetic field at
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Two long wires are hanging freely. They are joined first in parallel and then in series and then are connected with a battery. In both cases, which type of force acts between the two wires
Two long wires are hanging freely. They are joined first in parallel and then in series and then are connected with a battery. In both cases, which type of force acts between the two wires
physics-General
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A current
flowing through the loop as shown in figure. The magnetic field at centre
is

A current
flowing through the loop as shown in figure. The magnetic field at centre
is

physics-General
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In the figure shown, the magnetic field induction at the point
will be

In the figure shown, the magnetic field induction at the point
will be

physics-General
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A coil
carrying a current
ampere is placed in a powerful horse shoe magnet
of uniform magnetic field
figure. If
is the area of the coil and
is the inclination of the plane of the coil with the magnetic field in equilibrium, then the deflecting couple will be

A coil
carrying a current
ampere is placed in a powerful horse shoe magnet
of uniform magnetic field
figure. If
is the area of the coil and
is the inclination of the plane of the coil with the magnetic field in equilibrium, then the deflecting couple will be

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The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time.
and
are the currents in segment ab and cd. Then,

The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time.
and
are the currents in segment ab and cd. Then,

physics-General
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A current carrying wire
is bent in the form shown below. If wire carries a current of
and it is placed in a magnetic field of
which acts perpendicular to the paper outward then it will experience a force

A current carrying wire
is bent in the form shown below. If wire carries a current of
and it is placed in a magnetic field of
which acts perpendicular to the paper outward then it will experience a force

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A wire
is bent as shown in figure and is placed in a region of uniform magnetic field
The length of
A current
ampere flows through the wire as shown. The magnitude of the force on
will be

A wire
is bent as shown in figure and is placed in a region of uniform magnetic field
The length of
A current
ampere flows through the wire as shown. The magnitude of the force on
will be

physics-General
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A current
carrying circular wire of radius
is placed in a magnetic field
perpendicular to its plane. The tension
along the circumference of wire is

A current
carrying circular wire of radius
is placed in a magnetic field
perpendicular to its plane. The tension
along the circumference of wire is

physics-General
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Which of the following is not the unit of time
Which of the following is not the unit of time
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A current of 10 A is passing through a long wire which has semicircular loop of the radius 20 cm as shown in the figure. Magnetic field produced at the centre of the loop is

A current of 10 A is passing through a long wire which has semicircular loop of the radius 20 cm as shown in the figure. Magnetic field produced at the centre of the loop is

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The unit vectors
and
are as shown below. What will be the magnetic field at
in the following figure

The unit vectors
and
are as shown below. What will be the magnetic field at
in the following figure

physics-General