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A compass needle whose magnetic moment is 60 A m^2 points geographic north at a certain place where H=40μT. The compass needle experience a torque of 1⋅2×10−3 N^−m. What is the declination at the place?
05
Sep
A compass needle whose magnetic moment is 60 A m^2 points geographic north at a certain place where H=40μT. The compass needle experience a torque of 1⋅2×10−3 N^−m. What is the declination at the place? The vertical component of earth's magnetic field at a place is root 3 times the horizontal component the value of [...]
A proton (charge 1.6×10^−19C, mass = 1.67×10^−27kg) is shot with a speed 8×10^6ms−1 at an angle of 37 with the X-axis. A uniform magnetic field B = 0.30T exists along the X-axis. Show that path of the proton is a helix. Find the radius and pitch of the helix.
05
Sep
A proton (charge 1.6×10^−19C, mass = 1.67×10^−27kg) is shot with a speed 8×10^6ms−1 at an angle of 37 with the X-axis. A uniform magnetic field B = 0.30T exists along the X-axis. Show that path of the proton is a helix. Find the radius and pitch of the helix. A charge particle of mass m [...]
A body starts from rest and travels a distance S with uniform acceleration, then moves uniformly a distance 2S uniformly, and finally comes to rest after moving further 5S under uniform retardation. The ratio of the average velocity to maximum velocity is:
05
Sep
A body starts from rest and travels a distance S with uniform acceleration, then moves uniformly a distance 2S uniformly, and finally comes to rest after moving further 5S under uniform retardation. The ratio of the average velocity to maximum velocity is: A body starts from rest and travels a distance S with uniform acceleration [...]
A body travels 200 cm in the first two seconds and 220 cm in the next 4 s with deceleration. The velocity of the body at the end of the 7 s is
05
Sep
A body travels 200 cm in the first two seconds and 220 cm in the next 4 s with deceleration. The velocity of the body at the end of the 7 s is A body travels 200 cm in the first two seconds and 220 cm in the next 4 s with deceleration. The velocity [...]
The vertical component of earth’s magnetic field at a place is root 3 times the horizontal component the value of angle of dip at this place is?
05
Sep
The vertical component of earth’s magnetic field at a place is root 3 times the horizontal component the value of angle of dip at this place is? The vertical component of earth's magnetic field at a place is root 3 times the horizontal component the value of angle of dip at this place is? September [...]
A charge particle of mass m and charge q is projected velocity v along y-axis at t = 0. Find the velocity vector and position vector of the v(t) and r(t) in relation with time.
05
Sep
A charge particle of mass m and charge q is projected velocity v along y-axis at t = 0. Find the velocity vector and position vector of the v(t) and r(t) in relation with time. A charge particle of mass m and charge q is projected velocity v along y-axis at t = 0. Find [...]
A stone is dropped from a certain height which can reach the ground in 5 s. It is stopped after 3 s of its fall and then it is again released. The total time taken by the stone to reach the ground will be.
05
Sep
A stone is dropped from a certain height which can reach the ground in 5 s. It is stopped after 3 s of its fall and then it is again released. The total time taken by the stone to reach the ground will be. A body is released from the top of a tower of [...]
A magnetic dipole is free to rotate in a uniform magnetic field. For what orientation of the magnet with respect to the fiel (a) torque is maximum? (b) potential energy is maximum? (c) rate of change of torque with deflection is maximum?
05
Sep
A magnetic dipole is free to rotate in a uniform magnetic field. For what orientation of the magnet with respect to the fiel (a) torque is maximum? (b) potential energy is maximum? (c) rate of change of torque with deflection is maximum? Figure shows two small bar magnets having dipole moments M1 and M2 placed [...]
The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation t = root x + 3, where x is in meter and t is in second. Find the displacement of the particle when its velocity is zero.
05
Sep
The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation t = root x + 3, where x is in meter and t is in second. Find the displacement of the particle when its velocity is zero. The displacement x [...]
The magnetic field is confined in a square region. A positive charged particle of charge q and mass m is projected as shown in figure. Find the limiting velocities of the particle so that it may come out of face
05
Sep
The magnetic field is confined in a square region. A positive charged particle of charge q and mass m is projected as shown in figure. Find the limiting velocities of the particle so that it may come out of face A beam of charged particle contains masses 8×10^−27kg and 1.6×10^−26kg emerge from the end of [...]