Physics Class 12 Chapter 4 Moving charges and magnetism Physics Class 12 Chapter4 Moving charges and Magne | Page 11

Where , m = mass
of the lOD . m o = maximum mass of the ion . v = speed of Ion and c = speed of light .
Limitations of the Cyclotron ( i ) Cyclotron cannot accelerated uncharged particle like neutron .
( ii ) The positively charged particles having large mass i . e ., ions cannot move at limitless speed in a cyclotron .
Force between Two Infinitely Long Parallel Current Carrying Conductors
The force is attractive if current In both conductors is in same direction and repulsive if current 10 both conductors is in opposite direction .
( if the currents is both parallel wires arc equal and In same direction , then magnetic field at a point exactly half way between the wire is zero .)
Torque acting on a Current Carrying Coil Placed Inside a Uniform Magnetic Field
Torque acting on a current carrying coil placed inside a uniform magnetic field is given
τ = NBIA sin θ