Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The area of hysteresis loop of a material is equinalent to 250 joule. When 10 kg material is magnetised by an alternating field of 50 Hz then energy lost in one hour will be if the density of material is 7.5 gm/cm^2
18
Oct
The area of hysteresis loop of a material is equinalent to 250 joule. When 10 kg material is magnetised by an alternating field of 50 Hz then energy lost in one hour will be if the density of material is 7.5 gm/cm^2 the apparent dip will be given tanδ1 which is equal to: the axis [...]
An iron rod of volume 10^−4 m^3 and relative permeability 1000 is placed inside a long solenoid wound with 5 turns/cm. If a current of 0⋅5 A is passed through the solenoid, find the magnetic moment of the rod.
18
Oct
An iron rod of volume 10^−4 m^3 and relative permeability 1000 is placed inside a long solenoid wound with 5 turns/cm. If a current of 0⋅5 A is passed through the solenoid, find the magnetic moment of the rod. An iron rod of volume 10^−4 m^3 and relative permeability 1000 is placed inside a long [...]
The dipole moment of each molecule of a paramagnetic gas is 1.5 × 10^−23 amp × m^2. The temperature of gas is 27∘ and the number of molecules per unit volume in it is 2 × 10^26 m^−3. The maximum possible intensity of magnetisation in the gas will be
18
Oct
The dipole moment of each molecule of a paramagnetic gas is 1.5 × 10^−23 amp × m^2. The temperature of gas is 27∘ and the number of molecules per unit volume in it is 2 × 10^26 m^−3. The maximum possible intensity of magnetisation in the gas will be the apparent dip will be given [...]
Each atom of an iron bar (5 cm×1 cm×1 cm) has a magnetic moment 1.8 × 10^−23 Am^2 Knowing that the density of iron is 7.78 × 10^3 kg^−3 m atomic weight is 56 and Avogadro’s number is 6.02 × 10^23 the magnetic moment of bar in the state of magnetic saturation will be
18
Oct
Each atom of an iron bar (5 cm×1 cm×1 cm) has a magnetic moment 1.8 × 10^−23 Am^2 Knowing that the density of iron is 7.78 × 10^3 kg^−3 m atomic weight is 56 and Avogadro’s number is 6.02 × 10^23 the magnetic moment of bar in the state of magnetic saturation will be A [...]
The dip at a place is delta. For measuring it, the axis of the dip needle is perpendicular to the magnetic meridian. If the axis of the dip needle makes angle θ with the magnetic meridian, the apparent dip will be given tanδ1 which is equal to:
18
Oct
The dip at a place is delta. For measuring it, the axis of the dip needle is perpendicular to the magnetic meridian. If the axis of the dip needle makes angle θ with the magnetic meridian, the apparent dip will be given tanδ1 which is equal to: the apparent dip will be given tanδ1 which [...]
A magnetic dipole is placed under the effect of two magnetic fields inclined at 75 ∘ to each other. One of the fields has a magnetic induction of 1.5 × 10^ −2 T. The magnet comes to rest at an angle of 30 o with the direction of this field. The magnitude of the other field is:
18
Oct
A magnetic dipole is placed under the effect of two magnetic fields inclined at 75 ∘ to each other. One of the fields has a magnetic induction of 1.5 × 10^ −2 T. The magnet comes to rest at an angle of 30 o with the direction of this field. The magnitude of the other [...]
A short bar magnet of magnetic moment 255 J/T is placed with its axis perpendicular to the earths field direction. At what distance from the centre of the magnet, the resultant field is inclined at 45 ∘ with earths field on
18
Oct
A short bar magnet of magnetic moment 255 J/T is placed with its axis perpendicular to the earths field direction. At what distance from the centre of the magnet, the resultant field is inclined at 45 ∘ with earths field on A short bar magnet of magnetic moment 255 J/T is placed with its axis [...]
A vibration magnetometer consists of two identical bar magnets placed one over the other, such that they are mutually perpendicular and bisect each other The time period of oscillation in horizontal magnetic field is 4 s. If one the magnets is taken away, find the period of oscillation of the other in the same field.
18
Oct
A vibration magnetometer consists of two identical bar magnets placed one over the other, such that they are mutually perpendicular and bisect each other The time period of oscillation in horizontal magnetic field is 4 s. If one the magnets is taken away, find the period of oscillation of the other in the same field. [...]
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A vibration magnetometer consists of two identical bar magnets placed one over the other ,
find the period of oscillation of the other in the same field. ,
such that they are mutually perpendicular and bisect each other The time period of oscillation in horizontal magnetic field is 4 s. If one the magnets is taken away ,
Assume that the nuclear binding energy per nucleon (B/A) versus mass number (A) is as shown in figure. Use this plot to choose the correct choice (s) given below:
18
Oct
Assume that the nuclear binding energy per nucleon (B/A) versus mass number (A) is as shown in figure. Use this plot to choose the correct choice (s) given below: Assume that the nuclear binding energy per nucleon (B/A) versus mass number (A) is as shown in figure. Use this plot to choose the correct choice [...]
Let mp be the mass of proton, mn the mass of a neutron, m1 the mass of a 20 Ne10 nucleus, and M2 the mass of a 40Ca20 nucleus. Then,
18
Oct
Let mp be the mass of proton, mn the mass of a neutron, m1 the mass of a 20 Ne10 nucleus, and M2 the mass of a 40Ca20 nucleus. Then, and M2 the mass of a 40Ca20 nucleus. Then Let mp be the mass of proton m1 the mass of a 20 Ne10 nucleus mn [...]