In a mass spectrometer, an ion of charge, q, and mass, m,...
In a mass spectrometer, an ion of charge, q, and mass, m, moving in a path of radius, r, in a field of flux density, B, has a speed of
qBrm
mrqB
qmBr
mqr
Correct answer is A
F = qvB ( force on moving charge in a magnetic field) F = mv2r
equating F
qvB = mv2r
qB = mvr
qBr = mv
Therefore, v = qBrm
A body is launched from the earth’s surface, of radius R, so that it just escapes from the gra...
Local actions is normally prevented in a simple electric cell by ...
The frictional force between two bodies? ...
Supersonic plane fly with the speed ...
What is the reading of the vernier calipers shown above ...
When two mirrors are placed at an angle of 90º to each other, how many images will be form...
The particle that is responsible for the nuclear fission in a nuclear reactor is...