The potential energy of a particle in a force field is \( U=\frac{A}{r^{2}}-\frac{B}{r} \), wher...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=2lyRvUkIpr4


Duration: 1:02
66 views
0

The potential energy of a particle in a force field is \( U=\frac{A}{r^{2}}-\frac{B}{r} \), where \( A \) and \( B \) are positive constants and \( r \) is the distance of particle from the centre of the field. For stable equilibrium, the distance of the particle is
[CBSE PMT (Pre.) 2012]
(a) \( B / 2 A \)
(b) \( 2 A / B \)
(c) \( A / B \)
(d) \( B / A \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-10-27Two identical blocks \( A \) and \( B \), each of mass ' \( m \) ' resting on smooth floor are c...
2022-10-27A particle free to move along the \( x \)-axis has potential energy given by \( U(x)=k\left[1-\e...
2022-10-27A bomb is kept stationary at a point. It suddenly explodes into two fragments of masses \( 1 \ma...
2022-10-27An open knife edge of mass ' \( m \) ' is dropped from a height ' \( h \) ' on a wooden floor. I...
2022-10-27If a body looses half of its velocity on penetrating \( 3 \mathrm{~cm} \) in a wooden block, the...
2022-10-27A machine which is 75 percent efficient, uses 12 joules of energy in lifting up a \( 1 \mathrm{~...
2022-10-27A particle is released from a height \( S \). At certain height its kinetic energy is three time...
2022-10-27A spherical ball of mass \( 20 \mathrm{~kg} \) is stationary at the top of a hill of height \( 1...
2022-10-27The potential energy function for a particle executing linear SHM is given by \( V(x)=\frac{1}{2...
2022-10-27In a shotput event an athlete throws the shotput of mass \( 10 \mathrm{~kg} \) with an initial s...
2022-10-27The potential energy of a particle in a force field is \( U=\frac{A}{r^{2}}-\frac{B}{r} \), wher...
2022-10-27A rifle bullet loses \( 1 / 20^{\text {th }} \) of its velocity in passing through a plank. The ...
2022-10-27The block of mass \( M \) moving on the frictionless horizontal surface collides with the spring...
2022-10-27The kinetic energy acquired by a mass \( m \) in travelling a certain distance \( d \) starting ...
2022-10-27A \( 0.5 \mathrm{~kg} \) ball is thrown up with an initial speed \( 14 \mathrm{~m} / \mathrm{s} ...
2022-10-27An ice cream has a marked value of \( 700 \mathrm{kcal} \). How many kilowatt- hour of energy wi...
2022-10-27What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise...
2022-10-27A girl in a swing is \( 2.5 \mathrm{~m} \) above ground at the maximum height and at \( 1.5 \mat...
2022-10-27A ball is released from certain height. It loses \( 50 \% \) of its kinetic energy on striking t...
2022-10-27A frictionless track \( A B C D E \) ends in a circular loop of radius \( R \). A body slides do...
2022-10-27A body is falling freely under the action of gravity alone in vacuum. Which of the following qua...


Tags:
pw