Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A small coil C with N = 200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in figure. The cross sectional area of coil is A = 1.0 cm^2, length of arm OA of the balance beam is l = 30 cm. When there is no current in the coil the balance is in equilibrium. On passing a current I = 22 mA through the coil the equilibrium is restored by putting the additional counter weight of mass Δm = 60 mg on the balance pan.
16
Oct
A small coil C with N = 200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in figure. The cross sectional area of coil is A = 1.0 cm^2, length of arm OA of the balance beam is l = 30 cm. When [...]
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0 ) with velocity v0 = 3 j + 4 k m/s at t = 0 as shown in the figure [ Given qB0 / m = 1 rad/s ] [ No other field is present ] ,
A negatively charged particle of mass m having magnitude of charge q enters a magnetic field B = B0 K T at point P ( 3 M ,
A small coil C with N = 200 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in figure. The cross sectional area of coil is A = 1.0 cm^2 ,
Calculate the magnetic moment ( in Am^2 ) of a thin wire with a current I = 8 A, would tightly on a half a tore ( see figure ) . The diameter of the cross section of tore is equal to d = 5 cm , and the number of turns is N = 500.
16
Oct
Calculate the magnetic moment ( in Am^2 ) of a thin wire with a current I = 8 A, would tightly on a half a tore ( see figure ) . The diameter of the cross section of tore is equal to d = 5 cm , and the number of turns is N = [...]
A negatively charged particle of mass m having magnitude of charge q enters a magnetic field B = B0 K T at point P ( 3 M, 0 , 0 ) with velocity v0 = 3 j + 4 k m/s at t = 0 as shown in the figure [ Given qB0 / m = 1 rad/s ] [ No other field is present ]
16
Oct
A negatively charged particle of mass m having magnitude of charge q enters a magnetic field B = B0 K T at point P ( 3 M, 0 , 0 ) with velocity v0 = 3 j + 4 k m/s at t = 0 as shown in the figure [ Given qB0 / m [...]
A current I flows in a rectangularly shaped wire whose center lies at (x 0 ,0 , 0) and whose vertices are located at the point A(x 0 +d, −a, −b ),B (x 0 −d ,a ,−b), C(x 0 −d, a, +b), and D(x 0 +d,−a,+b) respectively. Assume that a, b, d <<x 0 . Find the magnitude of magnetic dipole moment vector of the rectangular wire frame in J/T. (Given: b = 10 m, I = 0.01 A, d = 4 m, a = 3 m.)
16
Oct
A current I flows in a rectangularly shaped wire whose center lies at (x 0 ,0 , 0) and whose vertices are located at the point A(x 0 +d, −a, −b ),B (x 0 −d ,a ,−b), C(x 0 −d, a, +b), and D(x 0 +d,−a,+b) respectively. Assume that a, b, d <<x 0 [...]
A 10 cm length of wire with a mass of 20 g is attached frictionlessly to the vetical segments of a wire in which a current I flows. The surrounding has horizontal field B=104G and the vertical direction is shown in fig. What must be the current I (in A) to maintain the 10 cm wire in an equilibrium position?
16
Oct
A 10 cm length of wire with a mass of 20 g is attached frictionlessly to the vetical segments of a wire in which a current I flows. The surrounding has horizontal field B=104G and the vertical direction is shown in fig. What must be the current I (in A) to maintain the 10 cm [...]
A metal wire PQ of mass 10 g lies at rest on two horizontal metal rails separated by 5 cm as shown in Fig. A vertically downward magnetic field of magnitude 0.80 T exist in the space. The resistance of the circuit is slowly decreased and it is found that when the resistance goes below 20.0 Ω the wire PQ starts sliding on the rails. The coefficient of friction between wires and rails is found. The coefficient of friction between wires and rails is found to be n/25. find n
16
Oct
A metal wire PQ of mass 10 g lies at rest on two horizontal metal rails separated by 5 cm as shown in Fig. A vertically downward magnetic field of magnitude 0.80 T exist in the space. The resistance of the circuit is slowly decreased and it is found that when the resistance goes below [...]
A current I = 10 A flows in a ring of radius r 0 = 15 cm made of a very thin wire. The tensile strength of the wire is equal to T=1.5N. The ring is placed in a magnetic field, which is perpendicular to the plane of the ring so that the forces tend to break the ring. Find B (in T) at which the ring is broken.
16
Oct
A current I = 10 A flows in a ring of radius r 0 = 15 cm made of a very thin wire. The tensile strength of the wire is equal to T=1.5N. The ring is placed in a magnetic field, which is perpendicular to the plane of the ring so that the forces tend [...]
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A current I = 10 A flows in a ring of radius r 0 = 15 cm made of a very thin wire. The tensile strength of the wire is equal to T=1.5N. The ring is placed in a magnetic field ,
which is perpendicular to the plane of the ring so that the forces tend to break the ring. Find B (in T) at which the ring is broken. ,
A square loop of uniform conducting wire is as shown in figure.A current I (in ampere) enters the loop from one end and exits the loop from opposite end as shown in figure. The length of one side of square loop is l meter.The wire has uniform cross-section area and uniform linear mass density. The magnetic field is in Tesla and force is in newton.
16
Oct
A square loop of uniform conducting wire is as shown in figure.A current I (in ampere) enters the loop from one end and exits the loop from opposite end as shown in figure. The length of one side of square loop is l meter.The wire has uniform cross-section area and uniform linear mass density. The [...]
Column I shows the state of motion of a charge particle. ColumnII shows the possible combintaion of electric field and magnetic field under which the path in column I is possible . Match appropriately.
16
Oct
Column I shows the state of motion of a charge particle. ColumnII shows the possible combintaion of electric field and magnetic field under which the path in column I is possible . Match appropriately. A charged particle passes through a region that could have electric field only or magnetic field only or both electric and [...]
A charged particle having a charge q and mass m is to be subjected to a combination of constant uniform magnetic field ( B ) and a constant uniform fravitational field ( E ) . Apart from these field forces there exists no other force. Now match the column.
16
Oct
A charged particle having a charge q and mass m is to be subjected to a combination of constant uniform magnetic field ( B ) and a constant uniform fravitational field ( E ) . Apart from these field forces there exists no other force. Now match the column. A charged particle passes through a [...]