Question Answers
Sahay Sir > Question Answers
An α−particle is accelerated by a potential difference of 10^4V. Find the change in its direction of motion, if it enters normally in a region of thickness 0.1 m having transverse magnetic induction of 0.1 tesla.
05
Sep
An α−particle is accelerated by a potential difference of 10^4V. Find the change in its direction of motion, if it enters normally in a region of thickness 0.1 m having transverse magnetic induction of 0.1 tesla. An α−particle is accelerated by a potential difference of 10^4V. Find the change in its direction of motion if [...]
A bar magnet has poles of strength 48 Am, which are 25 cm apart.(i) What is the magnetic moment of the magnet? (ii) What torque is required to hold this magnet at an angle 30 degree with a uniform field of flux density 0.15 T?
05
Sep
A bar magnet has poles of strength 48 Am, which are 25 cm apart.(i) What is the magnetic moment of the magnet? (ii) What torque is required to hold this magnet at an angle 30 degree with a uniform field of flux density 0.15 T? A bar magnet has poles of strength 48 Am which [...]
The velocity acquired by a body moving with uniform acceleration is 30 m/s in 2 s and 60 m/s in 4 s. The initial velocity is:
05
Sep
The velocity acquired by a body moving with uniform acceleration is 30 m/s in 2 s and 60 m/s in 4 s. The initial velocity is: The velocity acquired by a body moving with uniform acceleration is 30 m/s in 2 s and 60 m/s in 4 s. The initial velocity is: September 5, 2020 [...]
A positive charged particles having charge q and mass m is projected into a region having perpendicular uniform magnetic field B. The particles enter into a magnetic field region with speed v0 normal to the boundary of
05
Sep
A positive charged particles having charge q and mass m is projected into a region having perpendicular uniform magnetic field B. The particles enter into a magnetic field region with speed v0 normal to the boundary of A stream of protons and deuterons in a vacuum chamber enters a uniform magnetic field . Both protons [...]
Tags:
A stream of protons and deuterons in a vacuum chamber enters a uniform magnetic field . Both protons and deuterons have been subjected to same accelerating potential ,
hence the kinetic energies of the particles are the same. if the ion-stream is perpendicular to the magnetic field and the protons move in a ,
Between the two stations, a train accelerates from rest uniformly at first, then moves with constant velocity and finally retards uniformly to come to rest. If the ratio of the time taken is 1 : 8 : 1 and the maximum speed attained be 60 km/h, then what is the average speed over the whole journey ?
05
Sep
Between the two stations, a train accelerates from rest uniformly at first, then moves with constant velocity and finally retards uniformly to come to rest. If the ratio of the time taken is 1 : 8 : 1 and the maximum speed attained be 60 km/h, then what is the average speed over the whole [...]
Tags:
a train accelerates from rest uniformly at first ,
Between the two stations ,
then moves with constant velocity and finally retards uniformly to come to rest. If the ratio of the time taken is 1 : 8 : 1 and the maximum speed attained be 60 km/h ,
then what is the average speed over the whole journey ? ,
Two short bar magnet N1S1 and N2S2 of magnetic moments 32 AM^2 and 27 Am^2 are placed on the table as shown in figure. find the magnitude and direction of magnetic fields produced by these magnets at point P located on equilateral lines of both the magnets at distances of 4 m and 3 m respectively from their center.
05
Sep
Two short bar magnet N1S1 and N2S2 of magnetic moments 32 AM^2 and 27 Am^2 are placed on the table as shown in figure. find the magnitude and direction of magnetic fields produced by these magnets at point P located on equilateral lines of both the magnets at distances of 4 m and 3 m [...]
The position x of a particle varies with time (t) as x = at^2 − bt^3. The acceleration at time t of the particle will be equal to zero, where t is equal to
05
Sep
The position x of a particle varies with time (t) as x = at^2 − bt^3. The acceleration at time t of the particle will be equal to zero, where t is equal to The position x of a particle varies with time (t) as x = at^2 − bt^3. The acceleration at time t [...]
A stream of protons and deuterons in a vacuum chamber enters a uniform magnetic field. Both protons and deuterons have been subjected to same accelerating potential, hence the kinetic energies of the particles are the same. if the ion-stream is perpendicular to the magnetic field and the protons move in a
05
Sep
A stream of protons and deuterons in a vacuum chamber enters a uniform magnetic field. Both protons and deuterons have been subjected to same accelerating potential, hence the kinetic energies of the particles are the same. if the ion-stream is perpendicular to the magnetic field and the protons move in a A stream of protons [...]
Tags:
A stream of protons and deuterons in a vacuum chamber enters a uniform magnetic field . Both protons and deuterons have been subjected to same accelerating potential ,
hence the kinetic energies of the particles are the same. if the ion-stream is perpendicular to the magnetic field and the protons move in a ,
The distance travelled by a particle in a straight line motion is directly proportional to t^1/2, where ‘t’ time elapsed. What is the nature of motion?
05
Sep
The distance travelled by a particle in a straight line motion is directly proportional to t^1/2, where ‘t’ time elapsed. What is the nature of motion? The distance travelled by a particle in a straight line motion is directly proportional to t^1/2 where 't' time elapsed. What is the nature of motion? September 5, 2020 [...]
Doubly ionized helium ions are projected with a speed of 10km/s in a direction perpendicular to a uniform magnetic field of magnitude 1.0 T. Find (a) the force acting on an ion, (b) the radius of the circle in which it circulates and ( c) the time taken by an
05
Sep
Doubly ionized helium ions are projected with a speed of 10km/s in a direction perpendicular to a uniform magnetic field of magnitude 1.0 T. Find (a) the force acting on an ion, (b) the radius of the circle in which it circulates and ( c) the time taken by an (b) the radius of the [...]