A conducting loop carrying a currrent I is placed in a uniform magnetic filed pointing in to the plane of the paper as shown. The loop will have a tendency to
expand
contract
move towards positive x axis
move towards negative x axis
33
Net force on the loop is zero as in figure(Forces cancel each other..)... But... consider a rope being pulled by equal force at both ends.. net force is zero but it is pulled.. it has tendency to expand...(If it would have been elastic in place of rope it will expand..)
my doubt here is i thought external uniform magnetic fields donot exert a force on a current carrying loop then how does it expand
You missed word uniform in your statement...
11my doubt here is i thought external magnetic fields donot exert a force on a current carrying loop then how does it expand
33It will depend on sense of current and direction of field... so picture was necessary...
11math's answr matches
my doubt here is i thought external magnetic fields donot exert a force on a current carrying loop then how does it expand
please correct me
