Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A small charged ball having mass m and charge q is suspended from a rigid support by means of an inextensible thread of length l. It is made to rotate on a horizontal circular path in a uniform, time independent magnetic field of induction B which is directed upward. The time period of revolution of the ball is T0. If the thread is always stretched, calculate the radius of circular path on which the ball moves.
05
Sep
A small charged ball having mass m and charge q is suspended from a rigid support by means of an inextensible thread of length l. It is made to rotate on a horizontal circular path in a uniform, time independent magnetic field of induction B which is directed upward. The time period of revolution of [...]
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A small charged ball having mass m and charge q is suspended from a rigid support by means of an inextensible thread of length l. It is made to rotate on a horizontal circular path in a uniform ,
calculate the radius of circular path on which the ball moves. ,
time independent magnetic field of induction B which is directed upward. The time period of revolution of the ball is T0. If the thread is always stretched ,
A bar magnet is released from rest and starts falling through a metal ring as shown in fig, consider ywo cases , in case (I) the ring is solid all the way around, but in case (II) it has been cut through. discuss the motion of the magnet in both cases when it is above the ring and below the ring as well.
05
Sep
A bar magnet is released from rest and starts falling through a metal ring as shown in fig, consider ywo cases , in case (I) the ring is solid all the way around, but in case (II) it has been cut through. discuss the motion of the magnet in both cases when it is above [...]
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A bar magnet is released from rest and starts falling through a metal ring as shown in fig ,
but in case (II) it has been cut through. discuss the motion of the magnet in both cases when it is above the ring and below the ring as well. ,
consider ywo cases ,
in case (I) the ring is solid all the way around ,
A slightly divergent beam of charged particles accelerated by a Potential difference B propagates from a point A along the axis of solenoid. The beam is brought into focus at a distance l from the point A at two successive values of magnetic induction B1 and B2 . If the specific charge q/m of the particles
05
Sep
A slightly divergent beam of charged particles accelerated by a Potential difference B propagates from a point A along the axis of solenoid. The beam is brought into focus at a distance l from the point A at two successive values of magnetic induction B1 and B2 . If the specific charge q/m of the [...]
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A rectangular loop PQRS made from a uniform wire has length a ,
which remains hinged along a horizontal line taken as the y-axis (see figure). Take the vertically upward direction as the z-axis. A uniform magnetic field B = (3iˆ+4kˆ)B0 exists in the region. ,
width b and mass m. It is free to rotate about the arm PQ ,
A moving coil galvanometer has a coil of area A and number of turns N. A magnetic field B is applied on it. The torque acting on it is given by t = ki where i is current through the coil. If moment of inertia of the coil is l about the axis of rotation
05
Sep
A moving coil galvanometer has a coil of area A and number of turns N. A magnetic field B is applied on it. The torque acting on it is given by t = ki where i is current through the coil. If moment of inertia of the coil is l about the axis of rotation [...]
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A rectangular loop PQRS made from a uniform wire has length a ,
which remains hinged along a horizontal line taken as the y-axis (see figure). Take the vertically upward direction as the z-axis. A uniform magnetic field B = (3iˆ+4kˆ)B0 exists in the region. ,
width b and mass m. It is free to rotate about the arm PQ ,
An insulated circular loop wires rests upon a long straignt wire such that the center of the loop lies on the wire. both the wire and loop are in the same horizontal plane as shown in fig, the current I in the atraight wire is decreasing. in what direction is the induced current , if any, in the loop?
05
Sep
An insulated circular loop wires rests upon a long straignt wire such that the center of the loop lies on the wire. both the wire and loop are in the same horizontal plane as shown in fig, the current I in the atraight wire is decreasing. in what direction is the induced current , if [...]
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An insulated circular loop wires rests upon a long straignt wire such that the center of the loop lies on the wire. both the wire and loop are in the same horizontal plane as shown in fig ,
if any ,
in the loop? ,
the current I in the atraight wire is decreasing. in what direction is the induced current ,
A ring of radius R having unifromly distributed charge Q is mounted on a rod suspended by two identical strings. The tension in strings in equilibrium is T0. Now a vertical magnetic field is switched on and ring is rotated at constant angular velocity ω. Find the maximum ω with which the ring
05
Sep
A ring of radius R having unifromly distributed charge Q is mounted on a rod suspended by two identical strings. The tension in strings in equilibrium is T0. Now a vertical magnetic field is switched on and ring is rotated at constant angular velocity ω. Find the maximum ω with which the ring A rectangular [...]
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A rectangular loop PQRS made from a uniform wire has length a ,
which remains hinged along a horizontal line taken as the y-axis (see figure). Take the vertically upward direction as the z-axis. A uniform magnetic field B = (3iˆ+4kˆ)B0 exists in the region. ,
width b and mass m. It is free to rotate about the arm PQ ,
A rectangular loop that contains a resistor R is placed near a long straight wire carrying a current I. the wire and the loop are placed in the same plane shown in fig, if the current I is decreasing in time whta is the direction of the induced current through the resistor R- left to right or right to left?
05
Sep
A rectangular loop that contains a resistor R is placed near a long straight wire carrying a current I. the wire and the loop are placed in the same plane shown in fig, if the current I is decreasing in time whta is the direction of the induced current through the resistor R- left to [...]
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A rectangular loop that contains a resistor R is placed near a long straight wire carrying a current I. the wire and the loop are placed in the same plane shown in fig ,
if the current I is decreasing in time whta is the direction of the induced current through the resistor R- left to right or right to left? ,
A circular loop of wire placed on flat horizontal plane. an external magnetic field is directed perpendicular to the plane of the loop. the magnitude of the applied magneytic field is increasing with time. because of this increasing magnetic field , an induced current is flowing clockwise in the loop , as viewed from above. what is the direction of the external magnetic field?
05
Sep
A circular loop of wire placed on flat horizontal plane. an external magnetic field is directed perpendicular to the plane of the loop. the magnitude of the applied magneytic field is increasing with time. because of this increasing magnetic field , an induced current is flowing clockwise in the loop , as viewed from above. [...]
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A closed coil having 20 turns ,
A long copper wire carries a current of I ampere. Calculate the magnetic flux per meter of the wire for a plane surface S inside the wire as shown in Fig. ,
A square wire loop with L= 1 m sides is perpendicular to a uniform magnetic field ,
A wire forms a closed circular loop ,
of radius = 1 m and resistance 5 ohm . The circle is centered on a long straight wire; at time t = 0 the current in the long straight wire is 10 rightward. Thereafter ,
A rectangular loop PQRS made from a uniform wire has length a, width b and mass m. It is free to rotate about the arm PQ, which remains hinged along a horizontal line taken as the y-axis (see figure). Take the vertically upward direction as the z-axis. A uniform magnetic field B = (3iˆ+4kˆ)B0 exists in the region.
05
Sep
A rectangular loop PQRS made from a uniform wire has length a, width b and mass m. It is free to rotate about the arm PQ, which remains hinged along a horizontal line taken as the y-axis (see figure). Take the vertically upward direction as the z-axis. A uniform magnetic field B = (3iˆ+4kˆ)B0 exists [...]
Tags:
A rectangular loop PQRS made from a uniform wire has length a ,
which remains hinged along a horizontal line taken as the y-axis (see figure). Take the vertically upward direction as the z-axis. A uniform magnetic field B = (3iˆ+4kˆ)B0 exists in the region. ,
width b and mass m. It is free to rotate about the arm PQ ,
The region between x=0 and x=L is filled with uniform steady magnetic field B0k. A particle of mass m, positive charge q and velocity v0i travels along x-axis and enters the region of the magnetic field. Neglect the gravity throughout the question. a. Find the value of l if the particle emerges from the region of magnetic field with its final velocity at an angel 30 to its initial velocity.
05
Sep
The region between x=0 and x=L is filled with uniform steady magnetic field B0k. A particle of mass m, positive charge q and velocity v0i travels along x-axis and enters the region of the magnetic field. Neglect the gravity throughout the question. a. Find the value of l if the particle emerges from the region [...]
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A uniform constant magnetic field B is directed at an angle of 45 to the x-axis in the xy- plane . PQRS is a rigid ,
An electron gun G emits electrons of energy 2keV travelling in the positive x-direction. The electrons are required to hit the spot S where GS = 0.1m ,
and the line GS makes an angle of 60 with the x-axis as shown in figure. A uniform magnetic field B parallel to GS exists in the region outside the electron gun. ,
square wire frame carrying a steady current I0 ,
the frame is at rest in the position as shown in figure ,
The region between x=0 and x=L is filled with uniform steady magnetic field B0k. A particle of mass m ,
with its centre at the origin O. At time t=0 ,