JEE Mains Physics 2002-2019 Solved Video Solutions
A charged particle carrying charge 1μC is moving with velocity (2 i^ + 3 j^ + 4 k^) ms-1 . if an external magnetic filed of (5 i^ + 3 j^ – 6 k^) x 10^-3 T exists in the region where the particle is moving then the force on the particle is F x 10^-9 . The vector F is
18
Sep
A charged particle carrying charge 1μC is moving with velocity (2 i^ + 3 j^ + 4 k^) ms-1 . if an external magnetic filed of (5 i^ + 3 j^ – 6 k^) x 10^-3 T exists in the region where the particle is moving then the force on the particle is F x [...]
A 750 Hz, 20 V (rms) source is connected to a resistance of 100 Ω , an inductance of 0.1803 H and a capacitance of 10 μF all in series. The time in which the resistance (heat capacity 2 J/°C) will get heated by 10°C. is close to
18
Sep
A 750 Hz, 20 V (rms) source is connected to a resistance of 100 Ω , an inductance of 0.1803 H and a capacitance of 10 μF all in series. The time in which the resistance (heat capacity 2 J/°C) will get heated by 10°C. is close to 20 V (rms) source is connected to [...]
The magnetic field of a plane electromagnetic wave is B = 3 x 10^-8 Sin[200π(y + ct)] ^ i i^T where c = 3 × 10^8 ms^–1 is the speed of light. The corresponding electric field is
18
Sep
The magnetic field of a plane electromagnetic wave is B = 3 x 10^-8 Sin[200π(y + ct)] ^ i i^T where c = 3 × 10^8 ms^–1 is the speed of light. The corresponding electric field is The magnetic field of a plane electromagnetic wave is B = 3 x 10^-8 Sin[200π(y + ct)] ^ [...]
A balloon filled with helium (32°C and 1.7 atm.) bursts. Immediately afterwards the expansion of helium can be considered as
18
Sep
A balloon filled with helium (32°C and 1.7 atm.) bursts. Immediately afterwards the expansion of helium can be considered as A balloon filled with helium (32°C and 1.7 atm.) bursts. Immediately afterwards the expansion of helium can be considered as September 18, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 [...]
A torch battery of length l to be made up of a thin cylindrical bar of radius ‘a’ and a concentric thin cylindrical shell of radius ‘b’ filled in between with an electrolyte of resistivity ρ (see figure). If the battery is connected to a resistance of value R, the maximum Joule heating in R will take place for
18
Sep
A torch battery of length l to be made up of a thin cylindrical bar of radius ‘a’ and a concentric thin cylindrical shell of radius ‘b’ filled in between with an electrolyte of resistivity ρ (see figure). If the battery is connected to a resistance of value R, the maximum Joule heating in R [...]
Magnitude of magnetic field (in SI units) at the centre of a hexagonal shape coil of side 10 cm, 50 turns and carrying current I (Ampere) in units of μ0I / π is
18
Sep
Magnitude of magnetic field (in SI units) at the centre of a hexagonal shape coil of side 10 cm, 50 turns and carrying current I (Ampere) in units of μ0I / π is 50 turns and carrying current I (Ampere) in units of μ0I / π is Magnitude of magnetic field (in SI units) at [...]
Moment of inertia of a cylinder of mass M, length L and radius R about an axis passing through its centre and perpendicular to the axis of the cylinder is I = M ( R^2/4 + L^2/12 ). If such a cylinder is to be made for a given mass of a material, the ratio L/R for it to have minimum possible I is
18
Sep
Moment of inertia of a cylinder of mass M, length L and radius R about an axis passing through its centre and perpendicular to the axis of the cylinder is I = M ( R^2/4 + L^2/12 ). If such a cylinder is to be made for a given mass of a material, the ratio [...]
Two isolated conducting spheres S1 and S2 of radius 3/2R and 1/3R have 12 μC and –3 μC charges, respectively, and are at a large distance from each other. They are now connected by a conducting wire. A long time after this is done the charges on S1 and S2 are respectively
18
Sep
Two isolated conducting spheres S1 and S2 of radius 3/2R and 1/3R have 12 μC and –3 μC charges, respectively, and are at a large distance from each other. They are now connected by a conducting wire. A long time after this is done the charges on S1 and S2 are respectively and are at [...]
Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods whose vertices are occupied by atoms. The internal energy of a mole of the gas at temperature T is
18
Sep
Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods whose vertices are occupied by atoms. The internal energy of a mole of the gas at temperature T is area A and force F are chosen as fundamental units If speed (V) then the dimension of [...]
An elliptical loop having resistance R, of semi major axis a, and semi minor axis b is placed in a magnetic field as shown in the figure. If the loop is rotated about the x-axis with angular frequency ω, the average power loss in the loop due to Joule heating is
18
Sep
An elliptical loop having resistance R, of semi major axis a, and semi minor axis b is placed in a magnetic field as shown in the figure. If the loop is rotated about the x-axis with angular frequency ω, the average power loss in the loop due to Joule heating is An elliptical loop having [...]