- #1
babita
- 61
- 0
a problem in magnetics...
i've been stuck here for long....please help
;
a square coil of side A ,carrying a current I ,is placed on a table and a magnetic field B parallel to one of the edges is switched on. the mass of coil is M
now the question says-"find min magnetic field for which the coil will start tipping over"
.
this is how i went
net magnetic force = zero
net torque due to magnetic force= BI(L^2)
net torque due to wieght=0
.
have seen its solution which says
torque due to mag force=torque due to wieght
nd equates Mg(L/2)=BI(L^2)
which goes over my head.
pleasezzzzzzzz helpppppppppppp
i've been stuck here for long....please help
;
a square coil of side A ,carrying a current I ,is placed on a table and a magnetic field B parallel to one of the edges is switched on. the mass of coil is M
now the question says-"find min magnetic field for which the coil will start tipping over"
.
this is how i went
net magnetic force = zero
net torque due to magnetic force= BI(L^2)
net torque due to wieght=0
.
have seen its solution which says
torque due to mag force=torque due to wieght
nd equates Mg(L/2)=BI(L^2)
which goes over my head.
pleasezzzzzzzz helpppppppppppp