Home
Class 12
PHYSICS
When charge is given to a soap bubble, i...

When charge is given to a soap bubble, it shows:Two equal negative charges -q are fixed fixed at point (0, -a) and (0,a) on y-axis. A positive charge Q is released from rest at the point (2a, 0) on the x-axis. The charge Q will:

A

Execute simple harmonic motion about the origin

B

Move to the origin and remain at rest

C

Move to infinity

D

Execute oscillatory but not simple harmonic motion

Text Solution

Verified by Experts

The correct Answer is:
D
`F_("net") = 2Fcos theta`
`=2(1)/(4piepsilon_0)(-qQ)/((a^2+x^2))xx(x)/((a^2+x^2)^(1//2))`

`implies F_("net") =-1/(4piepsilon_0) .(2qQx)/((a^2+x^2)^(3//2))`
As `F_("net")` is not linear with x, motion will be oscillating but not SHM.
Promotional Banner

Similar Questions

Explore conceptually related problems

Two equal negative charges -q are fixed at points (0, -a) and (0,a) on y-axis. A poistive charge Q is released from rest at point (2a, 0) on the x-axis. The charge Q will

Two equal negative charges are fixed at points and on y-axis. A positive charge Q is released from rest at the point on the x-axis. The charge Q will:

Two equal positive charges Q are fixed at points (a, 0) and (-a,0) on the x-axis. An opposite charge -q at rest is relased from point (0, a) on the y-axis. The charge -q will

Two equal positive charges , Q , are fixed at points (0 , d) and (0 , -d) on the y -axis. A charged particle having charge -q and mass m is released from rest at point (d,0) on the x -axis . Discuss the motion of charged particle.

Two point charges (Q each are placed at (0,y) and (0-y) A point charge q of the sme polarity can move along the x-axis. Then