Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A wire of cross-sectional are A forms three sides of a square and is free to rotate about axis OO’. If the structure is deflected by an angle θ from the vertical when current i is passed through it in a magnetic field B acting vertically upwards and density of the wire is ρ, then the value of θ is given by
13
Oct
A wire of cross-sectional are A forms three sides of a square and is free to rotate about axis OO’. If the structure is deflected by an angle θ from the vertical when current i is passed through it in a magnetic field B acting vertically upwards and density of the wire is ρ, then [...]
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An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,
A uniform magnetic field of 1.5 T exists in a cylinderical region of radius 10.0 cm, its direction being parallel to the axis along east to west. A current carrying wire in north-south direction passes through this region. The wire intersects the axis and experience a force of 1.2N downwards. If the wire is turned from north south to northest-southwest direction. then magnitude and direction of force is
13
Oct
A uniform magnetic field of 1.5 T exists in a cylinderical region of radius 10.0 cm, its direction being parallel to the axis along east to west. A current carrying wire in north-south direction passes through this region. The wire intersects the axis and experience a force of 1.2N downwards. If the wire is turned [...]
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A uniform magnetic field of 1.5 T exists in a cylinderical region of radius 10.0 cm ,
An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,
A particle of positive charge q and mass m enters with velocity V j ^at the origin in a magnetic field B(− k ^ ) which is present in the whole space. The charge makes a perfectly inelastic collision with an identical particle (having same charge ) at rest but free to move at its maximum positive y−coordinate. After collision, the combined charge will move on trajectory (where r = qB /mV ) :
13
Oct
A particle of positive charge q and mass m enters with velocity V j ^at the origin in a magnetic field B(− k ^ ) which is present in the whole space. The charge makes a perfectly inelastic collision with an identical particle (having same charge ) at rest but free to move at its [...]
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An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,
In the plane mirror, the coordinates of image of a charged particle (initially at origin as shown in fig. after two and a half time periods are (initial velocity of charge particle v0 in the x-y plane and the plane mirror is perpendicular to the x-axis. A uniform magnetic field Biˆ exists in the space. P0 is pitch of helix, R0 is raduis of helix.)
13
Oct
In the plane mirror, the coordinates of image of a charged particle (initially at origin as shown in fig. after two and a half time periods are (initial velocity of charge particle v0 in the x-y plane and the plane mirror is perpendicular to the x-axis. A uniform magnetic field Biˆ exists in the space. [...]
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An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
In the plane mirror ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,
Figure. shows a conducting loop ABCDA placed in a uniform magnetic field (strength B) perpendicular to its plane. The part ABC is the (three-fourth) portion of the square of side length l. The part ADC is a circular arc of radius R. The points A and C are connected to a battery which supplies a current I to the circuit. The magnetic force on the loop due to the field B is
13
Oct
Figure. shows a conducting loop ABCDA placed in a uniform magnetic field (strength B) perpendicular to its plane. The part ABC is the (three-fourth) portion of the square of side length l. The part ADC is a circular arc of radius R. The points A and C are connected to a battery which supplies a [...]
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An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,
A semicircular wire of radius R, carrying current I, is placed in a magnetic field as shown in Fig. On left side of X’X, magnetic field strangth 2B0. Both fields are directed inside the page. The magnetic force experienced by the wire would be
13
Oct
A semicircular wire of radius R, carrying current I, is placed in a magnetic field as shown in Fig. On left side of X’X, magnetic field strangth 2B0. Both fields are directed inside the page. The magnetic force experienced by the wire would be A semicircular wire of radius R carrying current I is placed [...]
A charged particle moves insides a pipe which is bent as shown in Fig. 1.151. If R<mv/qB , then force exerted by the pipe on charged particle at P is (Neglect gravity)
13
Oct
A charged particle moves insides a pipe which is bent as shown in Fig. 1.151. If R<mv/qB , then force exerted by the pipe on charged particle at P is (Neglect gravity) A charged particle moves insides a pipe which is bent as shown in Fig. 1.151. If R<mv/qB then force exerted by the pipe [...]
A uniform current carrying ring of mass m and radius R is connected by a massless string as shown in Fig. 1.142. A uniform magnetic field B0 exists in the region to keep the ring in horizontal position, then the current in the ring is (l=length of string)
13
Oct
A uniform current carrying ring of mass m and radius R is connected by a massless string as shown in Fig. 1.142. A uniform magnetic field B0 exists in the region to keep the ring in horizontal position, then the current in the ring is (l=length of string) An electron is accelerated from rest through [...]
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An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,
A loop of flexible conducting wire of length l lies in magnetic field B which is normal to the plane of loop. A current l is passed through the loop. The tension developed in the wire to open up is
13
Oct
A loop of flexible conducting wire of length l lies in magnetic field B which is normal to the plane of loop. A current l is passed through the loop. The tension developed in the wire to open up is A loop of flexible conducting wire of length l lies in magnetic field B which [...]
The plane of a rectangular loop of wire with sides 0.05 m and 0.08 m is parallel to a uniform magnetic field of induction 1.5 × 10^−2 T. A current of 10.0 ampere flows through the loop. If the side of length 0.08 m is normal and the side of length 0.05 m is parallel to the lines of induction, then the torque acting on the loop is
13
Oct
The plane of a rectangular loop of wire with sides 0.05 m and 0.08 m is parallel to a uniform magnetic field of induction 1.5 × 10^−2 T. A current of 10.0 ampere flows through the loop. If the side of length 0.08 m is normal and the side of length 0.05 m is parallel [...]
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An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' ,
the force experienced by the electron in the same magnetic field becomes 2F. Then ,
the ratio (V'/V) is equal to ,